do not display documents viewlet in the main documents folder

src/pfwbged/folder/folder.py

@@ -49,6 +49,9 @@ class FolderViewlet(grok.Viewlet):
         return table
 
     def documents(self):
+        if self.context.id == 'documents' and aq_parent(self.context).portal_type == 'Plone Site':
+            # never return anything in the main documents folder
+            return []
         intids = component.getUtility(IIntIds)
         intid_catalog = component.getUtility(ICatalog)
         portal_catalog = api.portal.get_tool('portal_catalog')