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
30572	Composed queries cannot change the list of columns with values()/values_list().	Mariusz Felisiak	Mariusz Felisiak	"Composed queries cannot change the list of columns when `values()/values_list()` is evaluated multiple times, e.g.
{{{
>>> ReservedName.objects.create(name='a', order=2)
>>> qs1 = ReservedName.objects.all()
>>> print(qs1.union(qs1).values_list('name', 'order').get())
('a', 2)
>>> print(qs1.union(qs1).values_list('order').get())
('a', 2)
}}}

(see [https://github.com/django/django/blob/6e8303d49ba55e7393c7ef5553b240ae0d2f0c00/django/db/models/sql/compiler.py#L428-L433 compiler.py#L428-L433])."	Bug	closed	Database layer (models, ORM)	dev	Normal	fixed			Ready for checkin	1	0	0	0	0	0