diff -r 4b46b70be039 -r 475d5ceb83b9 src/reportlab/lib/abag.py
--- a/src/reportlab/lib/abag.py	Wed Jul 31 15:27:32 2013 +0100
+++ b/src/reportlab/lib/abag.py	Wed Jul 31 15:31:33 2013 +0100
@@ -19,7 +19,7 @@
         self.__dict__.update(attr)
 
     def clone(self,**attr):
-        n = ABag(**self.__dict__)
+        n = self.__class__(**self.__dict__)
         if attr: n.__dict__.update(attr)
         return n