"This isn't a bug, this is how the username system has to work to maintain unique logins to different accounts. The error messaging you receive is because the person you're trying to add has their email address as their username for another account they're on." What prevents someone from using someone else's email address as their username then, effectively blocking that person from being able to be invited? Seems like a DoS bug to me. Also, are email addresses and user names considered separate fields? If so, then the email address field shouldn't care what the user name field is and vice versa, as they shouldn't be dependent on one another. They're separate. If they are not separate fields then they should both always contain an email address. This is the confusion.
... View more
