--- a/Graphics/ClassItem.py	Sun Sep 09 17:46:32 2012 +0200
+++ b/Graphics/ClassItem.py	Sun Sep 09 19:38:07 2012 +0200
@@ -229,7 +229,6 @@
         @return persistence data (string)
         """
         entries = [
-            "item_type={0}".format(ClassItem.ItemType),
             "is_external={0}".format(self.external),
             "no_attributes={0}".format(self.noAttrs),
             "name={0}".format(self.model.getName()),