Comment 13 for bug 1417010

I pondered this for a while; quite naturally there is no perfect solution as synchronous reload/restart requests in hooks which may be part of a systemd unit transaction are fundamentally against the design of systemd. But this patch now seems to fix this bug and the three referenced Debian bugs, and supersedes Avoid-reload-and-re-start-requests-during-early-boot.patch and Avoid-reloading-services-when-shutting-down.patch, so I think it's better.

Attaching here so that I don't lose them.