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
21175	abstract base model classes never fire class_prepared signal	Carl Meyer	Christopher Babiak	"I can't think of a reason why this would be the preferred behavior.

In fact, `ensure_default_managers` (which is one of two uses of `class_prepared` in Django itself) is written with a specific case to handle abstract classes, even though it will never receive one, so clearly somebody else had an expectation that they would fire the signal too."	Bug	closed	Database layer (models, ORM)	1.5	Normal	wontfix			Accepted	1	0	0	1	0	0