[Bug-gnubg] BUG: Dice erroneously displayed

[Ian Shaw]

It is possible to get the dice erroneously displayed on the board when you set 
up a cube action position.

Start a new game.
With the initial dice still on display, enter edit mode.
Set the player who won the opening roll to be on roll (the dice disappear at 
this point).
Set up the new position and exit edit mode.
Double and take.
Analyse the match and navigate to the position.
The cube action position shows the initial roll.
The error propagates through to export formats. The example below was grabbed 
from the "Double to 2" line of the game record.


    GNU Backgammon  Position ID: 4HPwATCMZ/ABMA
                    Match ID   : cIkVAAAAAAAA
    +24-23-22-21-20-19------18-17-16-15-14-13-+  O: Leader
    | X              O |   |    O           X |  0 points
    | X              O |   |    O           X |  
    |                O |   |    O           X |  
    |                O |   |                X |  
    |                O |   |                X |  
    |                  |BAR|                  |v (Cube: 1)
    |                  |   |                O |  
    |                X |   |                O |  
    |                X |   |                O |  
    | O     X        X |   |    X           O |  Rolled 35
    | O     X        X |   |    X           O |  0 points
    +-1--2--3--4--5--6-------7--8--9-10-11-12-+  X: TrailerOnRoll



Regards
-- Ian