[1.1, 1.2] sfDoctrineGuardPlugin: fixes #4583 - issue with catching wrong exception
[1.1, 1.2] sfDoctrineGuardPlugin: fixes #4583 - issue with catching wrong exception


git-svn-id: b298d0be58d70b9228cb4d1953d1d6fb4924a8d8@12076 ee427ae8-e902-0410-961c-c3ed070cd9f9

aalbagarcia/sfDoctrineGuardPlugin