adding test for models that do not define unique fields, inspired by a patch from franco - #336
adding test for models that do not define unique fields, inspired by a patch from franco - #336

git-svn-id: fa56b3725f8795e2c24e2b4413b3767e83184823@1447578 13f79535-47bb-0310-9956-ffa450edef68

apache/bloodhound,apache/bloodhound,apache/bloodhound,apache/bloodhound