def exclude(self):
        """
        Custom descriptor for exclude since there is no get_exclude method to
        be overridden
        """
        exclude = self.VERSIONED_EXCLUDE

        if super(VersionedAdmin, self).exclude is not None:
            # Force cast to list as super exclude could return a tuple
            exclude = list(super(VersionedAdmin, self).exclude) + exclude

        return exclude
Custom descriptor for exclude since there is no get_exclude method to
        be overridden