Comment 38 for bug 1951586

>Circled back with the latest server image using rpi-imager to set the wifi credentials, wifi country does not get populated

Imager does not fill in the 'regulatory-domain' field in network-config because the last time we tried that the existing Ubuntu editions in the Imager repository did not support the field yet, and reacted badly to it. As in error'ing out instead of just ignoring.