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
23377	models.PositiveIntegerField does not perform proper validation in model.full_clean()	Patryk Zawadzki	nobody	You can assign any negative value and call `instance.full_clean()` and everything will pass until at the very end you get a nasty `IntegrityError` from your database backend—at which point you can only roll back the transaction.	Bug	closed	Database layer (models, ORM)	1.6	Normal	duplicate			Accepted	0	0	0	0	0	0