[9.18] fix: usr: "CNAME and other data check" not applied to all types

An incorrect optimization caused "CNAME and other data" errors not to be detected if certain types were at the same node as a CNAME.  This has been fixed.

Closes #5150

Backport of MR !10033

Merge branch 'backport-5150-cname-and-other-data-check-not-applied-to-all-types-9.18' into 'bind-9.18'

See merge request isc-projects/bind9!10101