[Samba] accidentally upgraded DC to 4.17.3 ... didn't work

[Stefan G. Weichinger]

Am 24.11.22 um 13:25 schrieb Stefan G. Weichinger via samba:

> Maybe someone points me at a way to fix this DSA-GUID issue or so.

If I understand this correctly, that wrong GUID might explain, why 
demoting doesn't work from the broken DC:

the final replication before the demote won't work either, right?

So it seems to me that this DC somehow has an identity issue ;-)