def save_file(self, new_data, new_object, original_object, change, rel, save=True):
        FileField.save_file(self, new_data, new_object, original_object, change, rel, save)
        # If the image has height and/or width field(s) and they haven't
        # changed, set the width and/or height field(s) back to their original
        # values.
        if change and (self.width_field or self.height_field) and save:
            if self.width_field:
                setattr(new_object, self.width_field, getattr(original_object, self.width_field))
            if self.height_field:
                setattr(new_object, self.height_field, getattr(original_object, self.height_field))
            new_object.save()