The taking effect of this Constitution or any provision thereof shall not of itself affect the tenure, term, status or compensation of any person then holding any public office, position or employment in this State, except as provided in this Constitution. Unless otherwise specifically provided in this Constitution, all constitutional officers in office at the time of its adoption shall continue to exercise the authority of their respective offices during the term for which they shall have been elected or appointed and until the qualification of their successors respectively. Upon the taking effect of this Constitution all officers of the militia shall retain their commissions subject to the provisions of Article V, Section III.