Modified `GeoManager.get_query_set` to reflect changes made for database routing in r12272.
Modified `GeoManager.get_query_set` to reflect changes made for database routing in r12272.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@12275 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django