tomchristie/django-rest-framework — pull request #540 by maspwr (2012-12-31 13:38:15+00:00)
Title: Don't persist relation changes in ModelSerializer#restore_object()

This was extracted out of #536. I believe it makes sense to hold off on persisting relation changes until `save` is called. It also keeps the code path more similar between update and create actions. I modified the FK relation update test to exemplify the behavior.