Comment 14 for bug 1706818

With ppa's at [1],[2] I tested and while it seemed 100% reproducible before it now seems to work on artful.
On Xenial I hit the error at least once still.

So there seems to be a race left that needs further analysis.
Actually the change changed more than just the file - I'll tear the Debian change apart and make sure it is fully backported for the next test.

[1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/2946
[2]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/2947