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
34296	Formset validation does not consider UniqueConstraint with F() expressions.	Jannis Vajen	nobody	When saving a formset with data that violates the model's `UniqueConstraint()`, no form validation error is reported during `formset.is_valid()`. Instead an IntegrityError is raised during `formset.save()`. This only happens with the rather new `UniqueConstraint()`, the older method of using `Meta.unique_together` doesn't suffer from this.	Bug	closed	Database layer (models, ORM)	dev	Normal	duplicate	formset, constraints		Accepted	0	0	0	0	0	0