diff --git a/OMCompiler/Compiler/Script/InteractiveUtil.mo b/OMCompiler/Compiler/Script/InteractiveUtil.mo
index 1d59a3fcb04..0706cf74139 100644
--- a/OMCompiler/Compiler/Script/InteractiveUtil.mo
+++ b/OMCompiler/Compiler/Script/InteractiveUtil.mo
@@ -15561,12 +15561,11 @@ algorithm
         end try;
         allPaths := {};
         for pt in fqpaths loop
-          allPaths := listAppend(allPaths, getAllInheritedClasses(pt, p));
-          allPaths := List.unique(allPaths);
+          allPaths := List.append_reverse(getAllInheritedClasses(pt, p), allPaths);
         end for;
-        fqpaths := listAppend(fqpaths, allPaths);
+        allPaths := Dangerous.listReverseInPlace(List.unique(allPaths));
       then
-        fqpaths;
+        listAppend(fqpaths, allPaths);
 
     else {};
   end matchcontinue;
diff --git a/OMCompiler/Compiler/Util/Error.mo b/OMCompiler/Compiler/Util/Error.mo
index 54a0e71225f..1fb9584e34f 100644
--- a/OMCompiler/Compiler/Util/Error.mo
+++ b/OMCompiler/Compiler/Util/Error.mo
@@ -1116,7 +1116,7 @@ public constant ErrorTypes.Message DUPLICATE_DEFINITION = ErrorTypes.MESSAGE(503
   Gettext.gettext("The same variable is being defined twice: %s."));
 public constant ErrorTypes.Message PATTERN_VAR_NOT_VARIABLE = ErrorTypes.MESSAGE(5038, ErrorTypes.TRANSLATION(), ErrorTypes.ERROR(),
   Gettext.gettext("Identifiers need to point to local or output variables. Variable %s is %s."));
-public constant ErrorTypes.Message LIST_REVERSE_WRONG_ORDER = ErrorTypes.MESSAGE(5039, ErrorTypes.TRANSLATION(), ErrorTypes.NOTIFICATION(),
+public constant ErrorTypes.Message LIST_REVERSE_WRONG_ORDER = ErrorTypes.MESSAGE(5039, ErrorTypes.TRANSLATION(), ErrorTypes.WARNING(),
   Gettext.gettext("%1:=listAppend(%1, _) has the first argument in the \"wrong\" order.\n  It is very slow to keep appending a linked list (scales like O(N²)).\n  Consider building the list in the reverse order in order to improve performance (scales like O(N) even if you need to reverse a lot of lists). Use annotation __OpenModelica_DisableListAppendWarning=true to disable this message for a certain assignment."));
 public constant ErrorTypes.Message IS_PRESENT_WRONG_SCOPE = ErrorTypes.MESSAGE(5040, ErrorTypes.TRANSLATION(), ErrorTypes.ERROR(),
   Gettext.gettext("isPresent needs to be called from a function scope, got %s."));