Closed banburybill closed 6 years ago
I'm not sure it's clearly stated at present.
https://mailarchive.ietf.org/arch/msg/dnsop/0NQZx6oMitWkzj87CWHS4srSeSs https://mailarchive.ietf.org/arch/msg/dnsop/NIqaHnulzQzX9jGwK8fIY5ebJDc
Done
I'm not sure it's clearly stated at present.