=== modified file 'Generateds/Generateds/generateDS.py'
--- Generateds/Generateds/generateDS.py	2011-08-03 21:31:17 +0000
+++ Generateds/Generateds/generateDS.py	2011-08-15 21:17:17 +0000
@@ -577,6 +577,12 @@
         self.coerce_attr_types()
         self.checkMixedBases()
         self.markExtendedTypes()
+        self.markAllMixed()
+
+    def markAllMixed(self):
+        self.setMixed(True)
+        for child in self.children:
+            child.markAllMixed()
 
     def markExtendedTypes(self):
         base = self.getBase()