Thank for your bug report! Just fixed on 1.3.4.
Avatar code is +- ready in raw version from feb, after, i never have finish it due to hard time and problems. I’ve think to give precedence in the little time i had to more important features. And i had think it was not so important also because users in phpBB can use Gravatar if activated on ACP. But i now this is not the point, an user can not own or want a Gravatar account.
So ok it will be added, as well all other possible profile fields.