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
11938	`to_field` does not function as expected.	David Cramer	nobody	"In lookups involving a `ForeignKey`, or a `ManyToMany` intermediary table using a `to_field` they fail due to looking for the primary key, rather than the field specified by `to_field`.

For example:

{{{
    user = models.ForeignKey(User, to_field=""username"")
    # Fails
    SimpleModel.objects.get(user=self.user)
}}}"		closed	Database layer (models, ORM)	1.1		duplicate	to_field		Unreviewed	0	0	0	0	0	0