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
34719	modelBase.add_to_class is ineffective when called in __init_subclass__ of an abstract Model	piscvau	nobody	"Using an abstract model which is also an abstract class.
In the subclass, I need to modify a field. This is done in the __init_subclass__ method, by creating a field and adding it to the model with ModelBase.add_to_class. 
The field disappears from the class.

Doing exactly the same on a model which is not an abstract class works fine.

see unittest file to reproduce this bug."	Bug	closed	Database layer (models, ORM)	4.1	Normal	duplicate	dynamic model modification		Unreviewed	0	0	0	0	0	0