Rational: adding a client seems inoffensive. Updating a client on the other hand is not (removing then adding a client). Co-authored-by: Laurent Gourvénec <lgourvenec@cadoles.com> Reviewed-on: #11 Co-authored-by: Laurent Gourvenec <lgourvenec@cadoles.com> Co-committed-by: Laurent Gourvenec <lgourvenec@cadoles.com>