Ticket #1336: usstate.patch

django/oldforms/__init__.py

@@ -958 +958 @@
             raise validators.CriticalValidationError, e.messages
 
     def html2python(data):
-        return data.upper() # Should always be stored in upper case
+        if data:
+            data = data.upper() # Should always be stored in upper case
+        return data
     html2python = staticmethod(html2python)
 
 class CommaSeparatedIntegerField(TextField):