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
18906	BaseModelFormSet.validate_unique should ignore forms marked for deletion	c.pollock@…	nobody	"is_valid() returns false for a formset where uniquness is violated even if one of the forms where the violation occurs has DELETE set to true in cleaned data

so maybe line 521 in django/forms/models.py which is currently

if not hasattr(form, ""cleaned_data""):
                    continue

should read something like, so it will ignore forms that are getting deleted anyway

 if not hasattr(form, ""cleaned_data"") or form.cleaned_data.get('DELETE', True):
                    continue

unless of course I have completely missed the point

Cheers
Charlie"	Bug	closed	Forms	1.4	Normal	fixed			Accepted	1	0	0	0	0	0