Reversed players are immediately removed when their current time is at their source end time

[alancutter]

The call to player._hasFutureEffect() in ticker() does not take into account the direction of the player.

    if (!player._hasFutureEffect()) {
      finishedPlayers.push(player);
    }

If the player is reversed and its current time is equal to its source's end time then the check will report that there is no future effect and the player will be removed.