Email Verification fails when email does not match casing.

[xXPinkmagicXx]

When upgrading your account if you write Abc@email.com instead of abc@email.com
The email varification will fail.

    @classmethod
    def find_last_code(cls, email):
        """Return the last code object for the given email, or None if not found"""
        return cls.query.filter(cls.email == email).order_by(cls.time.desc()).first()

You get this error but only when you are trying to confirm you password. This is not intuitive. As the correct error messages is not displayed either

[xXPinkmagicXx]

@mircealungu see fix in #599