[dns-operations] sophosxl.net problem?

[Florian Weimer]

* Paul Vixie:

>> It seems that a dual-mode BIND9 server does return recursive data
>> in answer to queries with "RD=0", but such answers then also have
>> "AA=0".
>
> sounds like a bug, some of which did slip through BIND9's cracks.

Aren't there cases where BIND 9 caches data in a
supposedly-authoritative-only view because the data is needed to send
NOTIFY queries to the right addresses?