--- model.py	Sat Nov 03 21:49:29 2007
+++ model-b.py	Sat Nov 03 21:52:51 2007
@@ -80,7 +80,7 @@
         string"""
         try:
             return to_unicode(content.decode('base64'))
-        except (UnicodeEncodeError, binascii.Error):
+        except (UnicodeEncodeError, binascii.Error, AttributeError):
             # cope with legacy content (stored before base64 encoding)
             return to_unicode(content)