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The problem still remains that player 2 knows what player 3's likely intentions are. Even if you make Player 3's declaration non binding, player 2 still has the advantage of more information.

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It seems to me that if all playes know that the out of turn action isn't binding, then this is no different than Player 3 picking up the chps to call and acting like he is going to call. Player two gets this information but doesn't know whether it is indiciative that Player 3 is going to call or that Player 3 wants Player 2 to think he will call.