aa flag not set by authoritative nameserver when answering subdomain

[pinheadmz]

Need to look into this, not sure if this is correct or not.

I have a zone with origin localhost and A records for localhost and *.localhost (so this issue might be related to the wildcard)

root, aa flag is present

$ dig @127.0.0.1 localhost

; <<>> DiG 9.16.3 <<>> @127.0.0.1 localhost
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63489
;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;localhost.                     IN      A

;; ANSWER SECTION:
localhost.              21600   IN      A       127.0.0.1
*.localhost.            21600   IN      A       127.0.0.1

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Jul 05 18:06:51 EDT 2020
;; MSG SIZE  rcvd: 72

subdomain, aa flag missing

$ dig @127.0.0.1 a.localhost

; <<>> DiG 9.16.3 <<>> @127.0.0.1 a.localhost
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44155
;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;a.localhost.                   IN      A

;; ANSWER SECTION:
a.localhost.            21600   IN      A       127.0.0.1

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Jul 05 18:06:56 EDT 2020
;; MSG SIZE  rcvd: 56