Comment 3 for bug 966249

I reproduced this issue using the SQL backend (identity driver = keystone.identity.backends.sql.Identity).
Error should be returned on (creating a tenant with name more than 64 characters in length) because the value stored in database is truncated (also, the API user does not know about the value being truncated).
Current implementation will return a 409 Conflict, if the first 64 characters of two tenant names are same.