[gnome-shell] AppDisplay: fix undefined variable reference

[Giovanni Campagna <gcampagna src gnome org>]

commit d3f978a19d11d5a39d85a1fe7ed52c96b26e25aa
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed Feb 20 16:16:12 2013 +0100

    AppDisplay: fix undefined variable reference
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694282

 js/ui/appDisplay.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 461145b..e3c3b92 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -347,7 +347,7 @@ const AppDisplay = new Lang.Class({
             Main.queueDeferredWork(this._frequentAppsWorkId);
         }));
         global.settings.connect('changed::app-folder-categories', Lang.bind(this, function() {
-            Main.queueDeferredWork(this._workId);
+            Main.queueDeferredWork(this._allAppsWorkId);
         }));
 
         this._views = [];