docs: def save(self, update_site=False, *args, **kwargs):
          """
          Set the site to the current site when the record is first
          created, or the ``update_site`` argument is explicitly set
          to ``True``.
          """
          if update_site or (self.id is None and self.site_id is None):
              self.site_id = current_site_id()
          super(SiteRelated, self).save(*args, **kwargs)