If the Council fail to pass an ordinance proposed by initiative petition, or pass it in a form different from that set forth in the petition therefor, the committee of the petitioners hereinafter provided for may require that it be submitted to a vote of the electors either in its original form or with any change or amendment presented in writing either at a public hearing before the committee to which the proposed ordinance was referred or during the consideration thereof by the Council. If the committee of petitioners require the submission of a proposed ordinance to a vote of the electors they shall certify that fact to the City Clerk, and file in his office a certified copy of the proposed ordinance in the form in which it is to be submitted, within ten days after final action on such proposed ordinance by the Council.