[Bug-gnubg] Match in progress destroyed when clicking for dice

[motiv4u]

The latest buid (GUI) : when you go back and forth in games, when
going to the new game, clicking in the dice area start a new default
match without warning.

Reproduction:
Start a match (whatever length).
As soon its your turn: resign backgammon.
gnubg accepts and you start a new game.
Go back to the previous game, then go forward to the new game.
Click in the dice area: gnubg starts a default match without warning.

I think it has to do with the changes made on Jan 25th:

Sun Jan 25 16:21:08 CET 2009 Christian Anthon <address@hidden>

        * gtkboard.c, play.c: Clicking anywhere on the board before first
        match is started starts a new match. Clicking in the dice area
        either starts a new game or roll the dice as appropriate.

N.

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"He is no fool who gives up what he cannot keep to gain what he cannot
lose." -Jim Elliot