title: GameCenter Sandbox and beta tests
body: <p>I would like to know how it works: if I have now my game working with GameCenter and want to release app for tests (AdHoc) then account of everyone, who will sign in to GameCenter, will become "Sandbox" state?</p>
  
  <p>You know I don't want to hassle my testers, if it's so as I thought, I maybe should disable GC for beta tests? </p>
  
  <p>Tell me please, how it works and what should I do.
  I see my 3 accounts I used for my own testing became "Sandbox". How to repair that and restore normal state?</p>