[gnome-games] quadrapassel: Fix fast forward (down key) stopping after a second

[Robert Ancell <rancell src gnome org>]

commit 489b3cdf1ebfc24fc573625563d4c04b374eb55c
Author: Robert Ancell <robert ancell canonical com>
Date:   Mon Feb 6 20:41:50 2012 +1100

    quadrapassel: Fix fast forward (down key) stopping after a second

 quadrapassel/src/game.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/quadrapassel/src/game.vala b/quadrapassel/src/game.vala
index d191ea2..31e9eb2 100644
--- a/quadrapassel/src/game.vala
+++ b/quadrapassel/src/game.vala
@@ -372,6 +372,8 @@ public class Game : Object
 
     public void set_fast_forward (bool enable)
     {
+        if (fast_forward == enable)
+            return;
         fast_forward = enable;
         setup_drop_timer ();
     }