Fixed bug in manipulator_valid_rel_key -- it assumed the related object was related by the primary-key field, whereas this didn't work with ForeignKeys to non-primary-key fields
Fixed bug in manipulator_valid_rel_key -- it assumed the related object was related by the primary-key field, whereas this didn't work with ForeignKeys to non-primary-key fields

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@3338 bcc190cf-cafb-0310-a4f2-bffc1f526a37

aparo/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel,FlaPer87/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel