So,
it seems many people, like myself, come across a situation where they when saving an instance want to do some action based on related objects. And most likely they soon find out that the related objects haven’t been updated or saved by the time the save method is called. The Django ORM gives no such guarantee, and I can see why it’s made that way. What I think could be done is letting the form processing notify you when many-to-many and inline formsets have been processed.