Fixed #12286 -- Modified the test case added in r12828 so that it passes under Postgres.
Fixed #12286 -- Modified the test case added in r12828 so that it passes under Postgres.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%4012846

Belgabor/django,Belgabor/django,Belgabor/django