Update for those interested: from the notary's response, I infer that it was a court error and will be corrected. The response was not particularly verbose either; I only received a copy of the "Berichtigungsantrag" to the court. Well, an independent review by the notary of correct implementation before passing it on to the bank and me is presumably not included in the notary fees. /ironyoff At least they do respond promptly and mistakes simply happen...