[banshee] [PlaybackControllerService] Clear the redo stack on shuffle mode change

[Alexander Kojevnikov <alexk src gnome org>]

commit 61e0de9d454e7c4f99af3327256704a3bd23fe33
Author: Alexander Kojevnikov <alexander kojevnikov com>
Date:   Fri Mar 5 21:33:54 2010 +1100

    [PlaybackControllerService] Clear the redo stack on shuffle mode change
    
    Fixes bgo#528809

 .../PlaybackControllerService.cs                   |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs b/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
index 20e3f52..4c8d212 100644
--- a/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
+++ b/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
@@ -483,6 +483,11 @@ namespace Banshee.PlaybackController
             get { return shuffle_mode; }
             set {
                 shuffle_mode = value;
+
+                // If the user changes the shuffle mode, she expects the "Next"
+                // button to behave according to the new selection. See bgo#528809
+                next_stack.Clear ();
+
                 var handler = ShuffleModeChanged;
                 if (handler != null) {
                     handler (this, new EventArgs<string> (shuffle_mode));