pr items

MEPalma · MEPalma · commit 2e175d8c320b · 2025-06-02T09:19:13.000+02:00
diff --git a/localstack-core/localstack/services/cloudformation/engine/v2/change_set_model_preproc.py b/localstack-core/localstack/services/cloudformation/engine/v2/change_set_model_preproc.py
@@ -516,9 +516,9 @@ def _compute_sub(args: str | list[Any], select_before: bool = False) -> str:
                     template_variable_value = sub_parameters[template_variable_name]
                 else:
                     try:
-                        resource_delta = self._resolve_reference(logical_id=template_variable_name)
+                        reference_delta = self._resolve_reference(logical_id=template_variable_name)
                         template_variable_value = (
-                            resource_delta.before if select_before else resource_delta.after
+                            reference_delta.before if select_before else reference_delta.after
                         )
                     except RuntimeError:
                         raise RuntimeError(
