(1) A proposed amendment to a county charter, whether proposed by the county governing body or by the people of the county in the exercise of the initiative power, shall embrace but one subject and matters properly connected therewith.
(2) When two or more amendments to a county charter are submitted to the electors of the county for their approval or rejection at the same election, they shall be so submitted that each amendment shall be voted on separately.
(3) Notwithstanding any county charter or legislation enacted thereunder, this section shall apply to every amendment of a county charter and shall take precedence and prevail over any conflicting provisions in a county charter or in legislation enacted thereunder.