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Changes between Initial Version and Version 2 of Ticket #275

-              initial
+              v2
 In method __call__ of class RequiredIfOtherFieldsGiven :
+{{{
 def __call__(self, field_data, all_data):
     for field in self.other:
         if all_data.get(field) and not field_data:
            raise ValidationError, self.error_message
+}}}
 looking at the __call__ method of the class RequiredIfOtherFieldNotGiven, the get() method is invoked in this way:
+{{{
 if not all_data.get(self.other, False) and not field_data:
+}}}
 maybe the missed argument is just ``False``, but I'm not sure :-(
 …
 This is the traceback generated when you call "save" on the add poll form:
+{{{
 There's been an error:
 …
 TypeError: get() takes exactly 3 arguments (2 given)
+}}}