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
33822	New FormSet.edit_only only set when formset created by modelformset_factory	Claude Paroz	Shawn Dong	The new `FormSet.edit_only` attribute (#26142) is only set from `modelformset_factory`. So if you create a formset class in a different way, the `edit_only` attribute is not set and a crash happens in the `save()` method when referring to `if self.edit_only:`.	Bug	closed	Forms	4.1	Release blocker	fixed		Vlad Shawn Dong	Ready for checkin	1	0	0	0	1	0