Fix the groupToEditPost field defaulting to the groupIdEdit field. Make sure

that the added collab system in the test has a parent asset as well, to ensure
that the inheritance works properly.

lib/WebGUI/Asset/Wobject/Collaboration.pm

@@ -742,7 +742,7 @@ sub definition {
             uiLevel=>6,
             fieldType=>'group',
             filter=>'fixId',
-            defaultValue=>'4'
+            defaultValue=>$session->asset->get('groupIdEdit') || '4',
         },
         );