In any such election, if a majority of the votes cast on the question of removal of any commissioner are affirmative, the person whose removal is sought shall thereupon be deemed removed from office upon the announcement of the official canvass of that election, and the vacancy caused by such recall shall be filled by the remainder of the city commission according to the provisions of Section 11 of this Charter.
   If, however, an election is held for the recall of more than two (2) commissioners, candidates to succeed them for their unexpired terms shall be voted upon at the same election, and shall be nominated without primary election, by petitions signed, dated and verified in the manner required for petitions presenting names of candidates for nomination at a primary election, and similar in form to such petitions, but signed by electors equal in number to at least five percent (5%) of the registered voters in the municipality at the last regular municipal election of the city, and filed with the election authorities at least thirty (30) days prior to such recall election. But no such nominating petition shall be signed or circulated until after the time has expired for signing the copies of the petition for the recall, and any signatures thereon antedating such time shall not be counted.