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
1798	change of int-type choice field stopps changes to be saved	mdt@…	Adrian Holovaty	"i have a field like
{{{
	TYPE_CHOICES = (
		(0, u'Foo', ),
		(1, u'Bar', ),
		(2, u'Whatever', ),
	)
	type = models.IntegerField(default=0, verbose_name=u""Type"", choices=TYPE_CHOICES )
}}}
and creating records with it works fine. but changing&saving records only works if the choice type field is not changed. 

another strange thing: while this field does not allow null values the listbox shows the dashes-line.

and finally: if i change the record and set the choice to the dash-line i get the expected error. after that error i can change the choice-type to a value and it gets stored - strange."	defect	closed	contrib.admin	dev	normal	invalid	choices null		Unreviewed	0	0	0	0	0	0