Reconcile the differences between SparseMisoSceneModel.clone & AuxModel.clone

git-svn-id: svn+ssh://src.earth.threerings.net/vilya/trunk@890 c613c5cb-e716-0410-b11b-feb51c14d237

src/java/com/threerings/stage/data/StageMisoSceneModel.java

@@ -22,7 +22,6 @@
 package com.threerings.stage.data;
 
 import com.threerings.miso.data.SparseMisoSceneModel;
-
 import com.threerings.whirled.data.AuxModel;
 import com.threerings.whirled.data.SceneModel;
 
@@ -79,4 +78,10 @@ public class StageMisoSceneModel extends SparseMisoSceneModel
     {
         return _sections.get(key);
     }
+
+    @Override
+    public StageMisoSceneModel clone ()
+    {
+        return (StageMisoSceneModel)super.clone();
+    }
 }