[NF] Fix prefixing issue.

- Handle prefixing of bindings coming from a parent of an instance.

Belonging to [master]:
  - #2456
  - OpenModelica/OpenModelica-testsuite#958

Compiler/NFFrontEnd/NFComponentRef.mo

@@ -449,12 +449,15 @@ public
         then
           dstCref;
 
-      case (CREF(), CREF())
+      case (CREF(), CREF()) guard referenceEq(srcCref.node, dstCref.node)
         algorithm
           cref := transferSubscripts(srcCref.restCref, dstCref.restCref);
         then
           CREF(dstCref.node, srcCref.subscripts, dstCref.ty, dstCref.origin, cref);
 
+      case (CREF(), CREF())
+        then transferSubscripts(srcCref.restCref, dstCref);
+
       else
         algorithm
           Error.assertion(false, getInstanceName() + " failed", sourceInfo());