Update newly created documentations as well

aleksis/apps/alsijil/schema/documentation.py

@@ -98,7 +98,7 @@ class DocumentationBatchCreateOrUpdateMutation(graphene.Mutation):
         # Sadly, we can't use the update_or_create method since create_defaults
         # is only introduced in Django 5.0
         if _id.startswith("DUMMY"):
-            return Documentation.create_from_lesson_event(
+            obj = Documentation.create_from_lesson_event(
                 info.context.user,
                 *Documentation.parse_dummy(_id),
             )