(a) The presentation to the council by the clerk of a valid and sufficient referendary petition, containing a number of signatures equal to twenty-five per cent of the registered electors of the city as of the date of the last regular city election, which signatures have been obtained within sixty days before the date of filing the petition with the clerk, shall automatically suspend the operation of the ordinance in question, pending repeal by the council or final determination by the electors.
(b) An ordinance adopted by the electorate through initiatory proceedings may not be amended or repealed by the council for a period of two years after the date of the election at which it was adopted, and an ordinance repealed by the electorate may not be re-enacted by the council for a period of two years after the date of the election at which it was repealed. Any such ordinance may be adopted, amended, or repealed at any time by appropriate referendum or initiatory procedure in accordance with the foregoing provisions of this chapter or if submitted to the electorate by the council on its own motion.
(c) If two or more initiated ordinances, adopted at the same election, shall have conflicting provisions, the provisions in the ordinance receiving the highest number of affirmative votes shall govern.