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
8075	get_previous(next)_by_foo problem with parent's datetime field	sanha <osanha@…>	nobody	"model_a has datetime field as t
model_b inherited model_a

when calling modelb.get_next(or previous)_by_t, it was failed.
"		closed	Database layer (models, ORM)	dev		duplicate			Unreviewed	0	0	0	0	0	0