Selected players for announcements should be cleared when a game is logged
Otherwise you run into troubles on a 5 player table, like e.g. this scenario:
- 5 player table
- player 1 is dealer
- player 2 plays misere
- now player 2 is dealer
- when you log a new misere, player 2 (who isn't involved in the new game) is still announcing misere, but this is not visible.
- logging the misere will cause an exception in the back-end.