[gnome-chess] Never claim the engine has died when all is well

[Michael Catanzaro <mcatanzaro src gnome org>]

commit e138e994c66c4ceae007cd75ccf02ee1d72702ca
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Jan 7 14:17:18 2014 -0600

    Never claim the engine has died when all is well
    
    Currently we display an erroneous "Oops! Something has gone wrong" if
    you start a new game within two seconds of having completed the previous
    game.
    
    Incindentally fixes https://bugzilla.gnome.org/show_bug.cgi?id=721671

 src/gnome-chess.vala |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/src/gnome-chess.vala b/src/gnome-chess.vala
index c6e0e0b..61302d6 100644
--- a/src/gnome-chess.vala
+++ b/src/gnome-chess.vala
@@ -650,10 +650,17 @@ public class Application : Gtk.Application
          * game is likely to end naturally first. (And in the off chance that
          * the game really is over but it takes more than two seconds for us to
          * figure that out, something really HAS gone wrong.)
+         *
+         * This is complicated a bit more because we have to be sure we're
+         * stopping the original, presumably-buggy game, and not a new one that
+         * the player just happens to have started two seconds after the last
+         * game finished normally.
          */
+        var original_game = game;
         Timeout.add_seconds (2, () => {
-            game.stop (ChessResult.BUG, ChessRule.BUG);
-            /* Disconnect from the mainloop */
+            if (game == original_game)
+                game.stop (ChessResult.BUG, ChessRule.BUG);
+            /* Disconnect from the main loop */
             return false;
         });
     }