Comment 15 for bug 1750780

Thanks Scott for your cross check.
I wonder why my former test failed on each of my tests without writing, but never the less your extended example is great for the systemd issue that remains.

Although all of this is still a race, for example with the job above on a Xenial container I could not trigger it in several retries (5/5 worked).
Doing the same in a Xenial KVM guest instead triggered it right away, but still not on every reboot (3/5 failed).

I hope that helps everybody trying to reproduce this.