The unversioned parent test with update_fields is an expectedFailure
The unversioned parent test with update_fields is an expectedFailure

Until Django #20272 is fixed, when the VersionField is excluded from
update_fields and there are no other fields to update on the versioned
class, checking can not happen because _do_update isn't called.

gavinwahl/django-optimistic-lock,gavinwahl/django-optimistic-lock