Authentication by id causing issues when switching servers

[thomotron]

As the client stores the last user id it was provided in the phikey.txt file, it (usually) does not match when joining a different server, leading to another user id being generated and stored in the file. The process repeats whenever the server is changed and the id provided does not match, creating a lot of unusable usernames as they are checked for uniqueness and tied to the user's id.