[gnome-tweak-tool] Make sure not-loaded tweaks are hidden

[John Stowers <jstowers src gnome org>]

commit f98a842a6d673bd23d2e65a3708222890fa41ddf
Author: John Stowers <john stowers gmail com>
Date:   Tue Aug 7 14:33:57 2012 +0200

    Make sure not-loaded tweaks are hidden

 gtweak/tweakmodel.py |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtweak/tweakmodel.py b/gtweak/tweakmodel.py
index 2f35518..62ccf1c 100644
--- a/gtweak/tweakmodel.py
+++ b/gtweak/tweakmodel.py
@@ -87,9 +87,11 @@ class TweakGroup:
         self.set_tweaks(*tweaks)
 
     def set_tweaks(self, *tweaks):
-        self.tweaks += [t for t in tweaks]
+        self.tweaks += [t for t in tweaks if t.loaded]
 
         for t in tweaks:
+            if not t.loaded:
+                continue
             if t.widget_for_size_group:
                 self._sg.add_widget(t.widget_for_size_group)