diff --git a/coderules/languages/jetbrains.mps.lang.coderules/runtime/models/jetbrains.mps.lang.coderules.program.mps b/coderules/languages/jetbrains.mps.lang.coderules/runtime/models/jetbrains.mps.lang.coderules.program.mps
index 60543090..0a182777 100644
--- a/coderules/languages/jetbrains.mps.lang.coderules/runtime/models/jetbrains.mps.lang.coderules.program.mps
+++ b/coderules/languages/jetbrains.mps.lang.coderules/runtime/models/jetbrains.mps.lang.coderules.program.mps
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-        <node concept="3clFbF" id="357z3MCewSd" role="3cqZAp">
-          <node concept="37vLTI" id="357z3MCexoB" role="3clFbG">
-            <node concept="37vLTw" id="357z3MCexrA" role="37vLTx">
-              <ref role="3cqZAo" node="357z3MCerfS" resolve="unit" />
+      <node concept="3cqZAl" id="5$0KRV_h31h" role="3clF45" />
+      <node concept="3clFbS" id="5$0KRV_h31i" role="3clF47">
+        <node concept="3clFbF" id="5$0KRV_h31j" role="3cqZAp">
+          <node concept="37vLTI" id="5$0KRV_h31k" role="3clFbG">
+            <node concept="37vLTw" id="5$0KRV_h31l" role="37vLTx">
+              <ref role="3cqZAo" node="5$0KRV_h31f" resolve="unit" />
             </node>
-            <node concept="2OqwBi" id="357z3MCex0t" role="37vLTJ">
-              <node concept="Xjq3P" id="357z3MCewSc" role="2Oq$k0" />
-              <node concept="2OwXpG" id="357z3MCeC$D" role="2OqNvi">
+            <node concept="2OqwBi" id="5$0KRV_h31m" role="37vLTJ">
+              <node concept="Xjq3P" id="5$0KRV_h31n" role="2Oq$k0" />
+              <node concept="2OwXpG" id="5$0KRV_h31o" role="2OqNvi">
                 <ref role="2Oxat5" node="357z3MCesvX" resolve="unit" />
               </node>
             </node>
           </node>
         </node>
       </node>
-      <node concept="3Tm1VV" id="357z3MCeqaH" role="1B3o_S" />
+      <node concept="3Tm1VV" id="5$0KRV_h31p" role="1B3o_S" />
     </node>
-    <node concept="2tJIrI" id="3x4yg2Xg2ZS" role="jymVt" />
+    <node concept="2tJIrI" id="5$0KRV_h31v" role="jymVt" />
     <node concept="3clFb_" id="3x4yg2Xg7_W" role="jymVt">
       <property role="TrG5h" value="getRelevantModels" />
       <node concept="3clFbS" id="3x4yg2Xg7_Z" role="3clF47">
@@ -13806,13 +13855,34 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="5$0KRV_gPtL" role="jymVt" />
+    <node concept="3clFb_" id="5$0KRV_gTCf" role="jymVt">
+      <property role="TrG5h" value="getRelevantOrigins" />
+      <node concept="3Tm1VV" id="5$0KRV_gTCh" role="1B3o_S" />
+      <node concept="3vKaQO" id="5$0KRV_gTCi" role="3clF45">
+        <node concept="2sp9CU" id="5$0KRV_h2Mm" role="3O5elw" />
+      </node>
+      <node concept="3clFbS" id="5$0KRV_gTCk" role="3clF47">
+        <node concept="3clFbF" id="5$0KRV_gYgX" role="3cqZAp">
+          <node concept="2OqwBi" id="5$0KRV_h1wK" role="3clFbG">
+            <node concept="2OqwBi" id="5$0KRV_gYRM" role="2Oq$k0">
+              <node concept="37vLTw" id="5$0KRV_gYgW" role="2Oq$k0">
+                <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
+              </node>
+              <node concept="3lbrtF" id="5$0KRV_h0Fh" role="2OqNvi" />
+            </node>
+            <node concept="26Dbio" id="5$0KRV_h2l4" role="2OqNvi" />
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="2tJIrI" id="357z3MCpSFM" role="jymVt" />
     <node concept="3clFb_" id="45q4rZQbgMm" role="jymVt">
       <property role="TrG5h" value="update" />
       <node concept="3clFbS" id="45q4rZQbgMp" role="3clF47">
         <node concept="3clFbF" id="3Q4yQQKz6Nl" role="3cqZAp">
           <node concept="1rXfSq" id="3Q4yQQKz6Nj" role="3clFbG">
-            <ref role="37wK5l" node="3Q4yQQKyW3r" resolve="updateForeignNodesSet" />
+            <ref role="37wK5l" node="3Q4yQQKyW3r" resolve="updateRelevantNodes" />
             <node concept="37vLTw" id="3Q4yQQKz6YP" role="37wK5m">
               <ref role="3cqZAo" node="45q4rZQbljy" resolve="updatedNode" />
             </node>
@@ -13832,7 +13902,7 @@
           <node concept="3clFbS" id="45q4rZQbpgW" role="2LFqv$">
             <node concept="3clFbF" id="3Q4yQQKz57i" role="3cqZAp">
               <node concept="1rXfSq" id="3Q4yQQKz57g" role="3clFbG">
-                <ref role="37wK5l" node="3Q4yQQKyW3r" resolve="updateForeignNodesSet" />
+                <ref role="37wK5l" node="3Q4yQQKyW3r" resolve="updateRelevantNodes" />
                 <node concept="2OqwBi" id="3Q4yQQKz5EN" role="37wK5m">
                   <node concept="37vLTw" id="3Q4yQQKz5yh" role="2Oq$k0">
                     <ref role="3cqZAo" node="45q4rZQbpgU" resolve="ref" />
@@ -14034,7 +14104,7 @@
             <node concept="1Wc70l" id="357z3MCdcI$" role="3uHU7w">
               <node concept="2OqwBi" id="357z3MCdcI_" role="3uHU7B">
                 <node concept="37vLTw" id="357z3MCdcIA" role="2Oq$k0">
-                  <ref role="3cqZAo" node="45q4rZQbJP2" resolve="foreignRelevantNodes" />
+                  <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
                 </node>
                 <node concept="2Nt0df" id="357z3MCdcIB" role="2OqNvi">
                   <node concept="2OqwBi" id="357z3MCdcIC" role="38cxEo">
@@ -14054,7 +14124,7 @@
                     <node concept="iZEcu" id="357z3MCdcIJ" role="2OqNvi" />
                   </node>
                   <node concept="37vLTw" id="357z3MCdcIK" role="3ElQJh">
-                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="foreignRelevantNodes" />
+                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
                   </node>
                 </node>
                 <node concept="3JPx81" id="357z3MCdcIL" role="2OqNvi">
@@ -14094,7 +14164,7 @@
     </node>
     <node concept="2tJIrI" id="3Q4yQQKyTq3" role="jymVt" />
     <node concept="3clFb_" id="3Q4yQQKyW3r" role="jymVt">
-      <property role="TrG5h" value="updateForeignNodesSet" />
+      <property role="TrG5h" value="updateRelevantNodes" />
       <node concept="3clFbS" id="3Q4yQQKyW3u" role="3clF47">
         <node concept="3cpWs8" id="45q4rZQbt1T" role="3cqZAp">
           <node concept="3cpWsn" id="45q4rZQbt1W" role="3cpWs9">
@@ -14216,7 +14286,7 @@
                         <node concept="iZEcu" id="45q4rZQbY2z" role="2OqNvi" />
                       </node>
                       <node concept="37vLTw" id="45q4rZQbWJG" role="3ElQJh">
-                        <ref role="3cqZAo" node="45q4rZQbJP2" resolve="foreignRelevantNodes" />
+                        <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
                       </node>
                     </node>
                   </node>
@@ -14225,7 +14295,7 @@
               <node concept="3fqX7Q" id="5eYRlKiKNuC" role="3clFbw">
                 <node concept="2OqwBi" id="5eYRlKiKNuE" role="3fr31v">
                   <node concept="37vLTw" id="5eYRlKiKNuF" role="2Oq$k0">
-                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="foreignRelevantNodes" />
+                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
                   </node>
                   <node concept="2Nt0df" id="5eYRlKiKNuG" role="2OqNvi">
                     <node concept="2OqwBi" id="5eYRlKiKNuH" role="38cxEo">
@@ -14248,7 +14318,7 @@
                     <node concept="iZEcu" id="45q4rZQc0BI" role="2OqNvi" />
                   </node>
                   <node concept="37vLTw" id="45q4rZQbQFC" role="3ElQJh">
-                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="foreignRelevantNodes" />
+                    <ref role="3cqZAo" node="45q4rZQbJP2" resolve="origin2relevantNodes" />
                   </node>
                 </node>
                 <node concept="TSZUe" id="45q4rZQc1Xd" role="2OqNvi">
@@ -14282,7 +14352,7 @@
       <node concept="3Tqbb2" id="357z3MCespZ" role="1tU5fm" />
     </node>
     <node concept="312cEg" id="45q4rZQbJP2" role="jymVt">
-      <property role="TrG5h" value="foreignRelevantNodes" />
+      <property role="TrG5h" value="origin2relevantNodes" />
       <node concept="3Tm6S6" id="45q4rZQby2S" role="1B3o_S" />
       <node concept="3rvAFt" id="45q4rZQbArp" role="1tU5fm">
         <node concept="2sp9CU" id="45q4rZQbAKu" role="3rvQeY" />
@@ -14320,7 +14390,7 @@
       </node>
     </node>
     <node concept="3uibUv" id="7NeFFOg2YmW" role="EKbjA">
-      <ref role="3uigEE" node="357z3MCcE_y" resolve="SNodeEventFilter" />
+      <ref role="3uigEE" node="357z3MCcE_y" resolve="RelevantNodesTracker" />
     </node>
     <node concept="3Tm1VV" id="7NeFFOg4fOl" role="1B3o_S" />
   </node>
diff --git a/coderules/solutions/jetbrains.mps.coderules.typechecking/models/jetbrains.mps.coderules.typechecking.service.mps b/coderules/solutions/jetbrains.mps.coderules.typechecking/models/jetbrains.mps.coderules.typechecking.service.mps
index 72896686..4cd097d0 100644
--- a/coderules/solutions/jetbrains.mps.coderules.typechecking/models/jetbrains.mps.coderules.typechecking.service.mps
+++ b/coderules/solutions/jetbrains.mps.coderules.typechecking/models/jetbrains.mps.coderules.typechecking.service.mps
@@ -518,6 +518,7 @@
       </concept>
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
       <concept id="1172254888721" name="jetbrains.mps.baseLanguage.collections.structure.ContainsOperation" flags="nn" index="3JPx81" />
+      <concept id="31378964227347002" name="jetbrains.mps.baseLanguage.collections.structure.SelectNotNullOperation" flags="ng" index="1KnU$U" />
       <concept id="5686963296372573083" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerType" flags="in" index="3O5elB">
         <child id="5686963296372573084" name="elementType" index="3O5elw" />
       </concept>
@@ -9362,11 +9363,11 @@
             <node concept="3cpWsn" id="3Q0j2bxsfac" role="3cpWs9">
               <property role="TrG5h" value="watchedUpdates" />
               <node concept="3uibUv" id="3Q0j2bxsfad" role="1tU5fm">
-                <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+                <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
               </node>
               <node concept="2OqwBi" id="3Q0j2bxwWj$" role="33vP2m">
                 <node concept="liA8E" id="3Q0j2bxwWYy" role="2OqNvi">
-                  <ref role="37wK5l" node="357z3MCmDO9" resolve="getOrCreateWatchedChangesFilter" />
+                  <ref role="37wK5l" node="357z3MCmDO9" resolve="getOrCreateNodesTracker" />
                   <node concept="2OqwBi" id="3Q0j2bxxMB4" role="37wK5m">
                     <node concept="37vLTw" id="3Q0j2bxxLkX" role="2Oq$k0">
                       <ref role="3cqZAo" node="7i3KM7gP3A_" resolve="unit" />
@@ -9378,7 +9379,7 @@
                       <node concept="3clFbF" id="3Q0j2bxubEm" role="3cqZAp">
                         <node concept="2ShNRf" id="3Q0j2bxubEk" role="3clFbG">
                           <node concept="1pGfFk" id="3Q0j2bxue1N" role="2ShVmc">
-                            <ref role="37wK5l" to="ksgm:357z3MCeqaD" resolve="TypeDependencyEventFilter" />
+                            <ref role="37wK5l" to="ksgm:5$0KRV_h31e" resolve="TypeDependenciesNodeTracker" />
                             <node concept="37vLTw" id="3Q0j2bxuehr" role="37wK5m">
                               <ref role="3cqZAo" node="7i3KM7gP3A_" resolve="unit" />
                             </node>
@@ -12734,7 +12735,7 @@
     </node>
     <node concept="2tJIrI" id="357z3MCmfEn" role="jymVt" />
     <node concept="3clFb_" id="357z3MCmDO9" role="jymVt">
-      <property role="TrG5h" value="getOrCreateWatchedChangesFilter" />
+      <property role="TrG5h" value="getOrCreateNodesTracker" />
       <node concept="3clFbS" id="357z3MCmDOc" role="3clF47">
         <node concept="3clFbF" id="357z3MCmRnD" role="3cqZAp">
           <node concept="2OqwBi" id="357z3MCmY7z" role="3clFbG">
@@ -12745,7 +12746,7 @@
               </node>
             </node>
             <node concept="liA8E" id="357z3MCvx$p" role="2OqNvi">
-              <ref role="37wK5l" node="3Q0j2bxwHX7" resolve="getOrCreateWatchedChangesFilter" />
+              <ref role="37wK5l" node="3Q0j2bxwHX7" resolve="getOrCreateNodesTracker" />
               <node concept="37vLTw" id="3Q0j2bxxFe6" role="37wK5m">
                 <ref role="3cqZAo" node="3Q0j2bxx_k1" resolve="factory" />
               </node>
@@ -12755,7 +12756,7 @@
       </node>
       <node concept="3Tm1VV" id="357z3MCmsft" role="1B3o_S" />
       <node concept="3uibUv" id="3Q0j2bxxOya" role="3clF45">
-        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
       </node>
       <node concept="37vLTG" id="357z3MCmShY" role="3clF46">
         <property role="TrG5h" value="unitRef" />
@@ -12767,7 +12768,7 @@
         <property role="TrG5h" value="factory" />
         <node concept="1ajhzC" id="3Q0j2bxxDWw" role="1tU5fm">
           <node concept="3uibUv" id="3Q0j2bxxEf5" role="1ajl9A">
-            <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+            <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
           </node>
         </node>
       </node>
@@ -12904,10 +12905,10 @@
       </node>
     </node>
     <node concept="312cEg" id="3Q0j2bxvJDw" role="jymVt">
-      <property role="TrG5h" value="watchedChangesFilter" />
+      <property role="TrG5h" value="relevantNodesTracker" />
       <node concept="3Tm6S6" id="3Q0j2bxvIb2" role="1B3o_S" />
       <node concept="3uibUv" id="3Q0j2bxvJkd" role="1tU5fm">
-        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
       </node>
     </node>
     <node concept="312cEg" id="4Z$O9mrQJ_R" role="jymVt">
@@ -13181,7 +13182,7 @@
               <node concept="1rXfSq" id="2ceN1hCNIzl" role="3clFbG">
                 <ref role="37wK5l" node="3u5wJtdQ7a" resolve="startTrackingChanges" />
                 <node concept="1rXfSq" id="3Q0j2bxxn1l" role="37wK5m">
-                  <ref role="37wK5l" node="3Q0j2bxx9iH" resolve="getOrDefaultWatchedChangesFilter" />
+                  <ref role="37wK5l" node="3Q0j2bxx9iH" resolve="getOrDefaultNodesTracker" />
                   <node concept="37vLTw" id="3Q0j2bxxne5" role="37wK5m">
                     <ref role="3cqZAo" node="19OC90ltWl" resolve="unit" />
                   </node>
@@ -13341,7 +13342,7 @@
               <node concept="1rXfSq" id="5Qx6_65_i4k" role="3clFbG">
                 <ref role="37wK5l" node="3u5wJtdQ7a" resolve="startTrackingChanges" />
                 <node concept="1rXfSq" id="3Q0j2bxxnTz" role="37wK5m">
-                  <ref role="37wK5l" node="3Q0j2bxx9iH" resolve="getOrDefaultWatchedChangesFilter" />
+                  <ref role="37wK5l" node="3Q0j2bxx9iH" resolve="getOrDefaultNodesTracker" />
                   <node concept="37vLTw" id="3Q0j2bxxnT$" role="37wK5m">
                     <ref role="3cqZAo" node="5Qx6_65_i4b" resolve="unit" />
                   </node>
@@ -13411,7 +13412,7 @@
         </node>
         <node concept="3clFbF" id="3Q0j2bxynuF" role="3cqZAp">
           <node concept="1rXfSq" id="3Q0j2bxynuD" role="3clFbG">
-            <ref role="37wK5l" node="3Q0j2bxyisb" resolve="clearWatchedChangesFilter" />
+            <ref role="37wK5l" node="3Q0j2bxyisb" resolve="clearNodeTracker" />
           </node>
         </node>
       </node>
@@ -13545,12 +13546,12 @@
     </node>
     <node concept="2tJIrI" id="3Q0j2bxwOHx" role="jymVt" />
     <node concept="3clFb_" id="3Q0j2bxwHX7" role="jymVt">
-      <property role="TrG5h" value="getOrCreateWatchedChangesFilter" />
+      <property role="TrG5h" value="getOrCreateNodesTracker" />
       <node concept="37vLTG" id="3Q0j2bxwKo1" role="3clF46">
         <property role="TrG5h" value="factory" />
         <node concept="1ajhzC" id="3Q0j2bxwLhB" role="1tU5fm">
           <node concept="3uibUv" id="3Q0j2bxwLCD" role="1ajl9A">
-            <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+            <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
           </node>
         </node>
       </node>
@@ -13567,7 +13568,7 @@
                 <node concept="2OqwBi" id="3Q0j2bxwNNB" role="37vLTJ">
                   <node concept="Xjq3P" id="3Q0j2bxwNGN" role="2Oq$k0" />
                   <node concept="2OwXpG" id="3Q0j2bxwNVA" role="2OqNvi">
-                    <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
+                    <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
                   </node>
                 </node>
               </node>
@@ -13576,7 +13577,7 @@
           <node concept="3clFbC" id="3Q0j2bxwNgF" role="3clFbw">
             <node concept="10Nm6u" id="3Q0j2bxwNwt" role="3uHU7w" />
             <node concept="37vLTw" id="3Q0j2bxwMZ3" role="3uHU7B">
-              <ref role="3cqZAo" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
+              <ref role="3cqZAo" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
             </node>
           </node>
         </node>
@@ -13584,19 +13585,19 @@
           <node concept="2OqwBi" id="3Q0j2bxwHXa" role="3clFbG">
             <node concept="Xjq3P" id="3Q0j2bxwHXb" role="2Oq$k0" />
             <node concept="2OwXpG" id="3Q0j2bxwHXc" role="2OqNvi">
-              <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
+              <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
             </node>
           </node>
         </node>
       </node>
       <node concept="3Tm1VV" id="3Q0j2bxwHXd" role="1B3o_S" />
       <node concept="3uibUv" id="3Q0j2bxwHXe" role="3clF45">
-        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
       </node>
     </node>
     <node concept="2tJIrI" id="3Q0j2bxytxp" role="jymVt" />
     <node concept="3clFb_" id="3Q0j2bxx9iH" role="jymVt">
-      <property role="TrG5h" value="getOrDefaultWatchedChangesFilter" />
+      <property role="TrG5h" value="getOrDefaultNodesTracker" />
       <node concept="37vLTG" id="3Q0j2bxxhpH" role="3clF46">
         <property role="TrG5h" value="unit" />
         <node concept="3Tqbb2" id="3Q0j2bxxirT" role="1tU5fm" />
@@ -13609,12 +13610,12 @@
                 <node concept="2OqwBi" id="3Q0j2bxx9iS" role="37vLTJ">
                   <node concept="Xjq3P" id="3Q0j2bxx9iT" role="2Oq$k0" />
                   <node concept="2OwXpG" id="3Q0j2bxx9iU" role="2OqNvi">
-                    <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
+                    <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
                   </node>
                 </node>
                 <node concept="2ShNRf" id="3Q0j2bxxj4V" role="37vLTx">
                   <node concept="1pGfFk" id="3Q0j2bxxjNN" role="2ShVmc">
-                    <ref role="37wK5l" to="ksgm:357z3MCgNd8" resolve="UnitEventFilter" />
+                    <ref role="37wK5l" to="ksgm:357z3MCgNd8" resolve="UnitNodeTracker" />
                     <node concept="37vLTw" id="3Q0j2bxxjU7" role="37wK5m">
                       <ref role="3cqZAo" node="3Q0j2bxxhpH" resolve="unit" />
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@@ -13626,7 +13627,7 @@
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             <node concept="37vLTw" id="3Q0j2bxx9iX" role="3uHU7B">
-              <ref role="3cqZAo" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
+              <ref role="3cqZAo" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
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@@ -13634,19 +13635,19 @@
           <node concept="2OqwBi" id="3Q0j2bxx9iZ" role="3clFbG">
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             <node concept="2OwXpG" id="3Q0j2bxx9j1" role="2OqNvi">
-              <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="watchedChangesFilter" />
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       <node concept="3Tm6S6" id="3Q0j2bxxlRc" role="1B3o_S" />
       <node concept="3uibUv" id="3Q0j2bxx9j3" role="3clF45">
-        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="SNodeEventFilter" />
+        <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
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     <node concept="2tJIrI" id="3Q0j2bxyqwT" role="jymVt" />
     <node concept="3clFb_" id="3Q0j2bxyisb" role="jymVt">
-      <property role="TrG5h" value="clearWatchedChangesFilter" />
+      <property role="TrG5h" value="clearNodeTracker" />
       <node concept="3clFbS" id="3Q0j2bxyise" role="3clF47">
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@@ -13654,7 +13655,7 @@
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+                <ref role="2Oxat5" node="3Q0j2bxvJDw" resolve="relevantNodesTracker" />
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@@ -13797,7 +13798,7 @@
       <node concept="37vLTG" id="357z3MCn5eC" role="3clF46">
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@@ -13936,7 +13937,7 @@
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+            <ref role="3uigEE" to="ksgm:357z3MCcE_y" resolve="RelevantNodesTracker" />
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@@ -14052,7 +14053,7 @@
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               <node concept="37vLTw" id="357z3MCoyuv" role="2Oq$k0">
-                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="changeFilter" />
+                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="relevantNodesTracker" />
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               <node concept="liA8E" id="357z3MCoz2x" role="2OqNvi">
                 <ref role="37wK5l" to="ksgm:357z3MCcFiT" resolve="isRelevant" />
@@ -14094,7 +14095,7 @@
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               <node concept="37vLTw" id="357z3MCozxY" role="2Oq$k0">
-                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="changeFilter" />
+                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="relevantNodesTracker" />
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               <node concept="liA8E" id="357z3MCozxZ" role="2OqNvi">
                 <ref role="37wK5l" to="ksgm:357z3MCcFlC" resolve="isRelevant" />
@@ -14136,7 +14137,7 @@
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-                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="changeFilter" />
+                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="relevantNodesTracker" />
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               <node concept="liA8E" id="357z3MCozZ7" role="2OqNvi">
                 <ref role="37wK5l" to="ksgm:357z3MCcFlU" resolve="isRelevant" />
@@ -14178,7 +14179,7 @@
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-                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="changeFilter" />
+                <ref role="3cqZAo" to="ksgm:2gPSxXTVG_L" resolve="relevantNodesTracker" />
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               <node concept="liA8E" id="357z3MCo$s8" role="2OqNvi">
                 <ref role="37wK5l" to="ksgm:357z3MCcFmi" resolve="isRelevant" />
@@ -16429,39 +16430,120 @@
                                       </node>
                                       <node concept="3clFbS" id="5Qx6_656iTW" role="1bW5cS">
                                         <node concept="3clFbH" id="5Qx6_656iTX" role="3cqZAp" />
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-                                            <node concept="37vLTw" id="5Qx6_656iU0" role="2Oq$k0">
-                                              <ref role="3cqZAo" to="1yqb:7kTeLbPt5$3" resolve="nodes" />
-                                            </node>
-                                            <node concept="1z4cxt" id="5Qx6_656iU1" role="2OqNvi">
-                                              <node concept="1bVj0M" id="5Qx6_656iU2" role="23t8la">
-                                                <node concept="3clFbS" id="5Qx6_656iU3" role="1bW5cS">
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-                                                      <node concept="2OqwBi" id="5Qx6_656iU6" role="2Oq$k0">
-                                                        <node concept="37vLTw" id="5Qx6_656iU7" role="2Oq$k0">
-                                                          <ref role="3cqZAo" node="5Qx6_656iTU" resolve="inv" />
+                                        <node concept="3cpWs8" id="64eeliHFVJT" role="3cqZAp">
+                                          <node concept="3cpWsn" id="64eeliHFVJW" role="3cpWs9">
+                                            <property role="TrG5h" value="input" />
+                                            <node concept="3Tqbb2" id="64eeliHFVJR" role="1tU5fm" />
+                                            <node concept="2OqwBi" id="5Qx6_656iTZ" role="33vP2m">
+                                              <node concept="37vLTw" id="5Qx6_656iU0" role="2Oq$k0">
+                                                <ref role="3cqZAo" to="1yqb:7kTeLbPt5$3" resolve="nodes" />
+                                              </node>
+                                              <node concept="1z4cxt" id="5Qx6_656iU1" role="2OqNvi">
+                                                <node concept="1bVj0M" id="5Qx6_656iU2" role="23t8la">
+                                                  <node concept="3clFbS" id="5Qx6_656iU3" role="1bW5cS">
+                                                    <node concept="3clFbF" id="5Qx6_656iU4" role="3cqZAp">
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+                                                        <node concept="2OqwBi" id="5Qx6_656iU6" role="2Oq$k0">
+                                                          <node concept="37vLTw" id="5Qx6_656iU7" role="2Oq$k0">
+                                                            <ref role="3cqZAo" node="5Qx6_656iTU" resolve="inv" />
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+                                                          <node concept="z$bX8" id="5Qx6_656iU8" role="2OqNvi" />
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-                                                        <node concept="z$bX8" id="5Qx6_656iU8" role="2OqNvi" />
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-                                                        <node concept="37vLTw" id="5Qx6_656iUa" role="25WWJ7">
-                                                          <ref role="3cqZAo" node="5Qx6_656iUb" resolve="it" />
+                                                        <node concept="3JPx81" id="5Qx6_656iU9" role="2OqNvi">
+                                                          <node concept="37vLTw" id="5Qx6_656iUa" role="25WWJ7">
+                                                            <ref role="3cqZAo" node="5Qx6_656iUb" resolve="it" />
+                                                          </node>
                                                         </node>
                                                       </node>
                                                     </node>
                                                   </node>
-                                                </node>
-                                                <node concept="Rh6nW" id="5Qx6_656iUb" role="1bW2Oz">
-                                                  <property role="TrG5h" value="it" />
-                                                  <node concept="2jxLKc" id="5Qx6_656iUc" role="1tU5fm" />
+                                                  <node concept="Rh6nW" id="5Qx6_656iUb" role="1bW2Oz">
+                                                    <property role="TrG5h" value="it" />
+                                                    <node concept="2jxLKc" id="5Qx6_656iUc" role="1tU5fm" />
+                                                  </node>
                                                 </node>
                                               </node>
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="3clFbH" id="5Qx6_656iUd" role="3cqZAp" />
+                                        <node concept="3clFbF" id="7H4$GiWBqXC" role="3cqZAp">
+                                          <node concept="3K4zz7" id="7H4$GiWBuY7" role="3clFbG">
+                                            <node concept="37vLTw" id="7H4$GiWBwSg" role="3K4E3e">
+                                              <ref role="3cqZAo" node="64eeliHFVJW" resolve="input" />
+                                            </node>
+                                            <node concept="3y3z36" id="7H4$GiWBvUO" role="3K4Cdx">
+                                              <node concept="37vLTw" id="7H4$GiWBqXA" role="3uHU7B">
+                                                <ref role="3cqZAo" node="64eeliHFVJW" resolve="input" />
+                                              </node>
+                                              <node concept="10Nm6u" id="7H4$GiWBtF8" role="3uHU7w" />
+                                            </node>
+                                            <node concept="2OqwBi" id="64eeliHGb6b" role="3K4GZi">
+                                              <node concept="2OqwBi" id="bkE56gg603" role="2Oq$k0">
+                                                <node concept="2OqwBi" id="bkE56gfKz9" role="2Oq$k0">
+                                                  <node concept="2OqwBi" id="bkE56gfHq6" role="2Oq$k0">
+                                                    <node concept="37vLTw" id="bkE56gfFZ3" role="2Oq$k0">
+                                                      <ref role="3cqZAo" node="6nFpYlucr5w" resolve="updatesRecorder" />
+                                                    </node>
+                                                    <node concept="liA8E" id="bkE56gfIOu" role="2OqNvi">
+                                                      <ref role="37wK5l" to="ksgm:bkE56gf5Wy" resolve="getRelevantOrigins" />
+                                                    </node>
+                                                  </node>
+                                                  <node concept="3$u5V9" id="bkE56gg0c$" role="2OqNvi">
+                                                    <node concept="1bVj0M" id="bkE56gg0cA" role="23t8la">
+                                                      <node concept="3clFbS" id="bkE56gg0cB" role="1bW5cS">
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+                                                          <node concept="2OqwBi" id="bkE56gg2gz" role="3clFbG">
+                                                            <node concept="37vLTw" id="bkE56gg1rR" role="2Oq$k0">
+                                                              <ref role="3cqZAo" node="bkE56gg0cC" resolve="it" />
+                                                            </node>
+                                                            <node concept="Vyspw" id="bkE56gg3sm" role="2OqNvi">
+                                                              <node concept="37vLTw" id="bkE56gg4GF" role="Vysub">
+                                                                <ref role="3cqZAo" to="1yqb:6kREIVkLEGt" resolve="repository" />
+                                                              </node>
+                                                            </node>
+                                                          </node>
+                                                        </node>
+                                                      </node>
+                                                      <node concept="Rh6nW" id="bkE56gg0cC" role="1bW2Oz">
+                                                        <property role="TrG5h" value="it" />
+                                                        <node concept="2jxLKc" id="bkE56gg0cD" role="1tU5fm" />
+                                                      </node>
+                                                    </node>
+                                                  </node>
+                                                </node>
+                                                <node concept="1KnU$U" id="bkE56gg7Wn" role="2OqNvi" />
+                                              </node>
+                                              <node concept="1z4cxt" id="64eeliHGb7j" role="2OqNvi">
+                                                <node concept="1bVj0M" id="64eeliHGb7k" role="23t8la">
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+                                                          <node concept="37vLTw" id="64eeliHGb7p" role="2Oq$k0">
+                                                            <ref role="3cqZAo" node="5Qx6_656iTU" resolve="inv" />
+                                                          </node>
+                                                          <node concept="z$bX8" id="64eeliHGhwE" role="2OqNvi">
+                                                            <node concept="1xIGOp" id="64eeliHGp7w" role="1xVPHs" />
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+                                                        </node>
+                                                        <node concept="3JPx81" id="64eeliHGb7r" role="2OqNvi">
+                                                          <node concept="37vLTw" id="64eeliHGb7s" role="25WWJ7">
+                                                            <ref role="3cqZAo" node="64eeliHGb7t" resolve="it" />
+                                                          </node>
+                                                        </node>
+                                                      </node>
+                                                    </node>
+                                                  </node>
+                                                  <node concept="Rh6nW" id="64eeliHGb7t" role="1bW2Oz">
+                                                    <property role="TrG5h" value="it" />
+                                                    <node concept="2jxLKc" id="64eeliHGb7u" role="1tU5fm" />
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+                                                </node>
+                                              </node>
+                                            </node>
+                                          </node>
+                                        </node>
+                                        <node concept="3clFbH" id="64eeliHGvF3" role="3cqZAp" />
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