Comment 2 for bug 1888536

Thanks for your bug report.

Yes, this looks like it's this issue upstream:

  https://gitlab.isc.org/isc-projects/bind9/-/issues/784

I still don't know why the configuration files are being reverted. I'm still looking into it.

Reading the issue above, you might want to do a 'snap restart maas' do ensure that the config is right, and then do a second 'snap restart maas'. That should restart bind with the correct config, and that might work around the issue.