Undo code review :)

b12io · Apr 16, 2019 · f6e5ff9 · f6e5ff9
1 parent 719e665
commit f6e5ff9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/orchestra/workflow/load.py b/orchestra/workflow/load.py
@@ -199,7 +199,7 @@ def _verify_dependencies_not_updated(step_data, dependency_attr,
     new_dependencies = set(step_data.get(dependency_attr, []))
     old_set = set(old_dependencies or [])
     new_set = set(new_dependencies)
-    if new_set - old_set:
+    if old_dependencies is not None and (new_set - old_set):
         raise WorkflowError(
             'Even with --force, you cannot change the topology of a workflow. '
             'Drop and recreate the database to reset, or create a new '