ClientSettingsDomain ignored in RFC6186 SRV records

[allddd]

After configuring the example.com domain, admin/#domains/example.com/dnsrecords recommends the following RFC6186 DNS records, among others:

; For secure IMAP and submission autoconfig, point to mail host.
_imaps._tcp.example.com.        SRV 0 1 993 mx.example.com.
_submissions._tcp.example.com.  SRV 0 1 465 mx.example.com.

Since I've configured mail.example.com as the ClientSettingsDomain, shouldn't the record point to that instead of mx.example.com? E.g.:

; For secure IMAP and submission autoconfig, point to mail host.
_imaps._tcp.example.com.        SRV 0 1 993 mail.example.com.
_submissions._tcp.example.com.  SRV 0 1 465 mail.example.com.

I’ve tested autoconfig and autodiscover with curl, and they correctly return mail.example.com.