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
23782	Lazy objects don't support __contains__	German M. Bravo	nobody	While trying to use SimpleLazyObject to check if something is contained in an object, the following throws an exception (`AttributeError: 'int' object has no attribute 'lower'`) when the `not in` fallback to the sequence iteration protocol: `'Content-Language' not in SimpleLazyObject(lambda: HttpResponseRedirect('/'))`	Uncategorized	closed	Uncategorized	1.7	Normal	worksforme			Unreviewed	0	0	0	0	0	0