server should return changed fields from all affected objects after update
Context:
alf 11:19 AM when a fragment is created, both the collection and the fragment are updated in the database (the collection.fragments array is updated, and the fragment is added), but only the fragment is returned to the client (which adds the id to collection.fragments in the redux store) 11:20 AM so the client doesn't get the new rev value for the collection 11:20 AM i suppose the only solution is to return the collection as well