Weak host-keys are not replaced during openssh update

[Markus Schönhaber]

Hi,

http://www.ubuntu.com/usn/usn-612-2
says:
| OpenSSH host keys can be automatically regenerated when the OpenSSH
| security update is applied. The update will prompt for confirmation
| before taking this step.

On two of the Gutsy servers I administer the weak host keys remain in
place after
aptitude update
aptitude safe-upgrade
and I am not prompted anything during the upgrade either.

Anyone else seeing this?

Regards
  mks