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
24368	FileField needlessly serializes upload_to; same problems with some other fields	Roman Odaisky	nobody	"django.db.models.fields.FileField explicitly includes upload_to in the serialization process. This takes no part in the actual migration process but causes errors if the value of the field is a lambda function. Instead, the deconstruct() functions for FileField and other fields should only serialize arguments relevant to subsequent ALTER commands issued to the DBMS.

Other places where this problem arises include ForeignKey.limit_choices_to — do changes to this attribute mandate a new migration and is it appropriate to have it fail if the value is a lambda?

Once fixed, #22351 can be reverted."	Uncategorized	new	Migrations	1.7	Normal				Unreviewed	0	0	0	0	0	0