Ticket #10647: managedm2m.diff

django/db/backends/creation.py

@@ -138 +138 @@
 
     def sql_for_many_to_many(self, model, style):
         "Return the CREATE TABLE statments for all the many-to-many tables defined on a model"
+        if not model._meta.managed:
+            return []
         output = []
         for f in model._meta.local_many_to_many:
             output.extend(self.sql_for_many_to_many_field(model, f, style))