Fixed #3215, #3081, #2749 -- Fixed problem with mistaken deletion of objects when a GenericRelation is involved. Thanks to Thomas Steinacher for helping to narrow down the problem (#3215), and Alex Dedul (#3081) for the starting point of a working patch.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@4428 bcc190cf-cafb-0310-a4f2-bffc1f526a37