id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
29126	Document the behavior of QuerySet.update_or_create() with manually specified pks	"Théo ""Bob"" Massard"	nobody	"Upon using the `update_or_create` method on a Model which has a modified `pk` field, an IntegrityError happens.

`psycopg2.IntegrityError: duplicate key value violates unique constraint ""tags_pkey""`

The PrimaryKey is an IntegerField with a modified `db_column`."	Cleanup/optimization	closed	Documentation	2.0	Normal	fixed			Accepted	1	0	0	0	0	0