def revision_view(self, request, object_id, version_id, extra_context=None):
        """Displays the contents of the given revision."""
        object_id = unquote(object_id) # Underscores in primary key get quoted to "_5F"
        version = get_object_or_404(Version, pk=version_id, object_id=object_id)
        context = {
            "title": _("Revert %(name)s") % {"name": version.object_repr},
        }
        context.update(extra_context or {})
        return self.revisionform_view(request, version, self.revision_form_template and self._get_template_list("revision_form.html"), context)
dataset/ETHPy150Open etianen/django-reversion/src/reversion/admin.py/VersionAdmin.revision_view/operator `or` -> `and`