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
20833	If there are choices more than 10 when using CheckboxSelectMultiple or SelectMultiple, different options from the original become selected.	Naoya Niwa <mine@…>	nobody	"MultipleChoiceField is stored in the database the data in serialized array like ""[u'4', u'13']"" . However, because the widget does not deserialize when reading it, the results shown is incorrect.

In version 1.4.5, the problem occurs in the 568 line and 548 line of ""django/forms/widgets.py"".

If one digit, for example, ""[u'9']"" is converted to ""set([u""'"", u'9', u'[', u']', u'u'])"" by ""set([force_unicode(v) for v in value])"", there is no problem in the process to match one by one index number.However, in the case of multi-digit numbers, and thus, for example, ""[u'13']"" is converted to ""set([u""'"", u'1', u'3', u'[', u']', u'u'])"", 1 and 3 in the zero-based index is selected."	Bug	closed	Forms	1.4	Normal	invalid	MultipleChoiceField		Unreviewed	0	0	0	0	0	0