Unless otherwise provided by law, whenever appointment to membership on any commission, comprised in whole or in part of members of the General Assembly, requires the concurrence or advice and consent of the Senate or of any committee thereof, and any original appointment has not been made or a vacancy exists after the sine die adjournment of the General Assembly, such original appointment may be made or such vacancy may be filled, without such concurrence or advice and consent, by the person or officer or chairman of the committee authorized to make the original appointment.