Opponent rage qutting makes game unable to finish duel

  1. Bug description
    [When your opponent rage quits with alt + f4 you get stuck in a gamestate where the gamestate cant advance and the game wont finish. You will time out and still be stuck in game.]

  2. Bug reproduction steps

    [Make your opponent rage quit and sit back and wait as you no longer can progress the gamestate in any way.]

    Spoiler

    your replay code

  3. Expected behavior
    [The game should end with the win given to the remaining player with some message that your opponent quit.]