unbound asks for A record, when txt requested

[Havard Eidnes]

> I found a strange behavior with unbound 1.6.0 as resolver. When
> I send a request for a "TXT" record unbound first asks for a
> "A" record.

That is indeed a little strange.

> Normally this is not a problem, but we now have a problem with
> a DNS server which only answers to "TXT" records. When you ask
> for a "A" record you get no response and you have to wait for
> the timeout.

I hope there is no disagreement that this is Utterly Broken
Behaviour.  The correct thing to do would be to send a NODATA
response if there is a TXT record or other record types attached
to the queried-for name.

Best regards,

- Håvard