What problem are you trying to solve?

Hi, i have DKIM txt record "rhscz._domainkey.rhscz.eu" but for some reason powerdns creates with this another record named "_domainkey.rhscz.eu" without any type or content in database (in my case it's MariaDB). So now when i get this record listed every time i want update records (where this is shown) i get error 500 because of this record without any type and content. this record seems to only show up when searching by keyword. So i would suggest generaly ignore any record without valid type.
I am now using 4.0.1

What would you like implemented?

Ignore invalid records in database

Additional context (optional)

See this PowerDNS issue #15987