Any person who, on June 30, 1965, was serving in a position requiring certification qualifications pursuant to the provisions of subdivisions (m), (n), and (o) of Section 13055 as amended by Chapter 840 of the Statutes of 1963, shall be deemed to be an employee in a position requiring certification qualifications for as long as he or she holds that position after January 1, 1987, and that position shall be deemed to be a certificated position for as long as this person holds that position.