[dnsdist] dnsdist latency bucket metric still broken in 1.8.0?

[Christoph]

Hi,

ever since [1] got the  dnsdist-1.8.0 milestone
we were looking forward to the 1.8.0 release
and were also a bit surprised that this regression
will not be in a 1.7.x bugfix release.

Recently we upgraded our dnsdist instances to 1.8.0
but the upgrade did not improve the values in dnsdist_latency_bucket.
Now after the upgrade, the graph show basically a flat line.
This only affects our FreeBSD servers, not our Debian based dnsdist 
instances.

[1] https://github.com/PowerDNS/pdns/issues/11239


best regards,
Christoph