No way to perform manual E-mail confirmation

Steps to reproduce

• Have a server with E-mail confirmation configured
• User registers
• Confirmation E-mail doesn't get sent for whatever reason (misconfiguration, mail server issues, etc.)
• ???

The mix task toggle_activated changes the deactivated entry in the database. But there's no mix task or other straightforward way to change the confirmation_token and confirmation_pending entries as far as I can tell.