To reproduce:
- register an account in a plugin(firefox) as
something+tag@domain.com - Try to log into the site
- Try to reset password on site
Neither login in nor password reset will work as the email will be considered invalid on the site.
Additional comments:
Confirmation email upon registration will be sent and work.
I generated my password via password manager and saved it, so I know it is correct, but cannot log into the site.