Comment 1 for bug 1819439

Confirmed, reload is triggering a restart in xenial, bionic and cosmic. It's fixed in disco.

But some care must be taken here, apparently a follow-up fix was necessary. Upstream bugs:
- original bug: https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=4108
https://github.com/NLnetLabs/unbound/commit/5106ad7a2c8460d5bb9cb619d360dfe1f259eac2

- follow-up bug: https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=4156
https://github.com/NLnetLabs/unbound/commit/216759e955219d8ab3c25f4e69a3f65e27880cd8

Adding tasks for xenial, bionic and cosmic.