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
15711	Abstract model managers should return subclass instances	Jeremy Dunck	nobody	"Suppose a base:

{{{
class Document(Model):
   title = CharField()
   
   class Meta:
     abstract = True

class Presentation(Document):
   num_kitten_pictures = IntegerField()

class Spreadsheet(Document):
    num_pie_charts = IntegerField()
}}}

It would be useful if Documents.objects.filter(title='x') returned instances of both Presentation and Spreadsheet whose title was 'x'.

I'd expect support only for base-class fields.  This should be safe, since inheritance should follow an is-a relationship.

"	New feature	closed	Database layer (models, ORM)	1.2	Normal	wontfix	pony		Design decision needed	0	0	0	0	0	0