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Changes between Version 1 and Version 2 of Ticket #34207, comment 3

v1	v2
9	9	To make it clear, intermediary models that don't define a strict unique relationship on `(from, to)` are supported. However `add(through_defaults)` is focused on enforcing that at least one entry of the `(from, to)` tuple exists and doesn't make any assumption with regards to the unique constraints defined on the intermediary model.
10	10
11		If you want to enforce the unique existence of a tuple that is a superset of the the `(from, to)` relationship you should use `get_or_create` instead of expecting `add~~(through_defaults)` to figure out which of your unique constraints should be enforced based on your provided `through_defaults`~~.
	11	If you want to enforce the unique existence of a tuple that is a superset of the the `(from, to)` relationship you should use `get_or_create` instead of expecting `add` to figure out which of your unique constraints should be enforced based on your provided `through_defaults` (as there could be many).
12	12
13	13