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A hold reaches an account by name, through any of its addresses' domains, its groups or its tenant, as they are now, so an account added to a held domain later is held too. An account that leaves a held domain, group or tenant stays held: the registry write hook adds it to the hold by name on every account change, whoever makes it (LH-2). Server::holds_on answers for the deletion paths, from the store each time so a hold binds every node at once.