Merge pull request #1660 from JetBrains/fix-copy-paste-exceptions

fix(tables): another fix for IAE during copy/paste

Author: sergej-koscejev

code/tables/languages/de.slisson.mps.tables/generator/template/[email protected]

@@ -401,6 +401,9 @@
       <concept id="1218047638031" name="jetbrains.mps.lang.generator.generationContext.structure.GenerationContextOp_CreateUniqueName" flags="nn" index="2piZGk">
         <child id="1218047638032" name="baseName" index="2piZGb" />
       </concept>
+      <concept id="2537089342344712322" name="jetbrains.mps.lang.generator.generationContext.structure.GenerationContextOp_CopyWithTrace" flags="ng" index="2QPPRi">
+        <child id="2537089342344730415" name="nodes" index="2QPDDZ" />
+      </concept>
       <concept id="5190093307972723402" name="jetbrains.mps.lang.generator.generationContext.structure.GenerationContextOp_ParameterRef" flags="nn" index="3cR$yn">
         <reference id="5190093307972736266" name="parameter" index="3cRzXn" />
       </concept>
@@ -13780,11 +13783,13 @@
                                 <node concept="1bVj0M" id="2CQc9DPhvkw" role="23t8la">
                                   <node concept="3clFbS" id="2CQc9DPhvkx" role="1bW5cS">
                                     <node concept="3clFbF" id="2CQc9DPhvyD" role="3cqZAp">
-                                      <node concept="2OqwBi" id="2CQc9DPhvO_" role="3clFbG">
-                                        <node concept="37vLTw" id="2CQc9DPhvyC" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="2CQc9DPhvky" resolve="it" />
+                                      <node concept="2OqwBi" id="1S_MuZtKT4k" role="3clFbG">
+                                        <node concept="1iwH7S" id="1S_MuZtKSrF" role="2Oq$k0" />
+                                        <node concept="2QPPRi" id="1S_MuZtKTxr" role="2OqNvi">
+                                          <node concept="37vLTw" id="2CQc9DPhvyC" role="2QPDDZ">
+                                            <ref role="3cqZAo" node="2CQc9DPhvky" resolve="it" />
+                                          </node>
                                         </node>
-                                        <node concept="1$rogu" id="2CQc9DPhwCs" role="2OqNvi" />
                                       </node>
                                     </node>
                                   </node>