[gnome-music/playlists] clear model on update

[Eslam Mostafa <cseslam src gnome org>]

commit d7082b791591b023173b5bf6b06a1357a554b761
Author: Eslam Mostafa <me eslammostafa com>
Date:   Sun Jun 16 19:10:00 2013 +0200

    clear model on update

 src/widgets.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/widgets.js b/src/widgets.js
index 9c3f89b..9cd4295 100644
--- a/src/widgets.js
+++ b/src/widgets.js
@@ -348,6 +348,7 @@ const SongsList = new Lang.Class({
 
     update: function(playlistUrl) {
         this.playlist = playlistUrl;
+        this._model.clear();
         this._populate();
         this.show_all();
     },