I read Upgrading from 5.2.1 to zammad 5.4 and ran again the db migration as I think it is harmless to do so. I got no message doing this, either good or bad. I am not sure where I should look for something: nothing in the Postgresql logs, nothing that looks related in the Zammad log file.
BTW, I don’t know what the exact impact of this problem should be. As it is related to some translation table from what I understand, it may be that I don’t use it… At least the Engish and French versions look ok.