After the commission has nominated and submitted to the governor the names of three (3) persons for appointment to fill a vacancy on the supreme court, any name or names may be withdrawn for cause deemed by the commission to be of a substantial nature affecting the nominee’s qualifications to hold office, and another name or names may be substituted therefor at any time before the appointment is made to fill such vacancy. If any nominee dies or requests in writing that his name be withdrawn the commission shall nominate another person to replace him. Whenever there are existing at the same time two (2) or more vacancies and the commission has nominated and submitted to the governor lists of three (3) persons for each of such vacancies, the commission may, in its sole discretion and before an appointment is made, withdraw the lists of nominations, change the names of any of such persons nominated from one (1) list to another and resubmit them as so changed, and may substitute a new name for any of those previously nominated. Action of a commission in withdrawing nominations may be taken at the same meeting at which the nominations were made, or at any later meeting.