Comment 8 for bug 2003756

>>>>> "Sergio" == Sergio Durigan Junior <email address hidden> writes:
    Sergio> systemd-invoke will try to run systemctl like this:

    Sergio> systemctl --quiet --system restart krb5-kdc.service

    Sergio> which fails because of the problem mentioned above.

So, there was a bug that made its way to the Debian TC asking what the
behavior ought to be when a maintainer script tried to restart a unit
and the unit failed.
The conclusion of that bug was that there is no general
policy--sometimes you want the maintainer script to fail, sometimes you
do not.
At least that was my recollection.

krb5-kdc is a service where you probably don't want the unit
restarting/starting to be a failure to cause the maintainer script to
fail.
How to I explain that to debhelper?

--Sam