Kind of weird that when i testing microweber new installation on user registration.
1. register with email@example.com is successful.
2. register with firstname.lastname@example.org is failed and no error message showing (there is something inside the logs file)
>> Integrity constraint violation: 1062 Duplicate entry 'adamtang' for key 'users_username_unique' at <<
Can I set username is always equal to email?