Strange failure on XN--MGBA3A4F16A.

[A. Schulze]

John R Levine via Unbound-users:

> But where'd Google's answers come from?

this is the delegation
> ;; AUTHORITY SECTION:
> XN--MGBA3A4F16A.	172800	IN	NS	a.nic.ir.
> XN--MGBA3A4F16A.	172800	IN	NS	ns.irnic.ir.

and these are autotitative data
> ;; ANSWER SECTION:
> XN--MGBA3A4F16A.	1439	IN	NS	b.nic.ir.
> XN--MGBA3A4F16A.	1439	IN	NS	a.nic.ir.
> XN--MGBA3A4F16A.	1439	IN	NS	ir.cctld.authdns.ripe.net.

hence, the difference.

Andreas