Problem with an unsigned private subzone of a signed public zone

[Chris Thompson]

On Apr 19 2010, I wrote:

[...]
>Of course, it could also prove there is no DS record for
>private.cam.ac.uk, but the absence of NS records as well
>apparently makes it think that private.cam.ac.uk is bogus.

More experiments indicate that something changed between
9.6.1-P3 and 9.6.2rc1 - previously the "type stub" setup
worked OK without a delegation in the signed parent.

-- 
Chris Thompson
Email: cet1 at cam.ac.uk