DNS bug: Negative response does not return SOA.

[johanix]

Negative response type 0 (name exist, type does not exist) should return SOA in Authority, but doesn't:

>dig @msigner1.ddns.axfr.net api.ms1.music.axfr.net ns 

; <<>> DiG 9.18.21 <<>> @msigner1.ddns.axfr.net api.ms1.music.axfr.net ns
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 7923
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;api.ms1.music.axfr.net.		IN	NS

;; AUTHORITY SECTION:
ms1.music.axfr.net.	86400	IN	NS	ns.ms1.music.axfr.net.

;; ADDITIONAL SECTION:
ns.ms1.music.axfr.net.	86400	IN	A	192.0.2.1

;; Query time: 6 msec
;; SERVER: 51.21.143.118#53(msigner1.ddns.axfr.net) (UDP)
;; WHEN: Mon Dec 02 18:44:37 CET 2024
;; MSG SIZE  rcvd: 130