Fixed #452 -- Fixed bug in generated DB API for models that have two ManyToManyFields to the same related model.
Fixed #452 -- Fixed bug in generated DB API for models that have two ManyToManyFields to the same related model.

git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@1516 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django