CORD-2914 return a list of models that were dirtied

Change-Id: Ib5bdf6d5eb0109e5375a1aea27566f1c380e359c
diff --git a/xos/coreapi/xos_utility_api.py b/xos/coreapi/xos_utility_api.py
index 4f2d125..cddf861 100644
--- a/xos/coreapi/xos_utility_api.py
+++ b/xos/coreapi/xos_utility_api.py
@@ -195,8 +195,11 @@
             objs = model.objects.all()
             for obj in objs:
                 try:
-                     obj.caller = user
-                     obj.save()
+                    obj.caller = user
+                    obj.save()
+                    item = dirty_models.items.add()
+                    item.class_name = model.__name__
+                    item.id = obj.id
                 except Exception, e:
                     item = dirty_models.items.add()
                     item.class_name = model.__name__