Notwithstanding any other provision of law, or the bylaws of the district, all elections held after the effective date of this chapter within the district, including elections for director and elections which are required by law to authorize any special taxes or bonded indebtedness, shall be conducted as resident voter elections in accordance with the provisions of this chapter. Nothing in this chapter shall be construed to require resident voter approval of bonds where voter approval is not required under the statutory or constitutional provisions in effect prior to the effective date of this chapter.