Domain deletion incomplete
It seems that when deleted a few things remain in the database as recreating a domain of the same name fails.
The error that seems to be triggered when recreating it : [ERROR] domain_moderator_new.go:20 domainModeratorNew(): cannot insert new moderator: pq: duplicate key value violates unique constraint "moderators_pkey"
After verification it seems that the table moderators still contains an entry with the domain that was deleted, thus making it impossible to create a new domain of the same name.
delete from moderators where domain='https://my.old.domain';
seems to do the trick.