Having received my invite I registered, completing the usual steps. I never managed to login afterwards, getting “invalid email address or password” errors.
I tried to request a new password in case I managed to add a typo, but I cannot reset my password either. Here the error message is saying “Username can’t be blank” and “Username is invalid”.
Something was saved however, since I can’t use the invite token to create a new user with the username I chose the first time (error message: “handle already in use”.
Help appreciated. :)