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
30532	Union queryset should raise on filter() and exclude().	Charles Thayer	nobody	"If a queryset results from a union() it would help to have filter() and exclude() raise instead of return unpredictable results. I propose a _is_union_result bool flag on querysets to track this.

/charles thayer

https://www.google.com/search?q=django+unions+filter+bug+site:stackoverflow.com&sa=X&ved=2ahUKEwiksOCAg8TiAhWBop4KHXPZDMMQrQIoBDAAegQIABAM"	Cleanup/optimization	closed	Database layer (models, ORM)	dev	Normal	duplicate			Unreviewed	0	0	0	0	0	0