¹[22A. A general election of Mayor and Commissioners ²[* * *] shall be held-(a) for the purpose of constituting the Corporation under section 3, as soon as may be, after the commencement of this Ordinance;(b) for the purpose of reconstituting the Corporation after the expiration of the term of the Corporation, within the period of one hundred and eighty days preceding such expiration; and(c) for the purpose of reconstituting the Corporation after the expiration of the period of supersession of the Corporation, if any, before such expiration: Provided that the persons elected at a general election under clause (b) or (c) shall not enter upon the office as Mayor or Commissioner of the Corporation except after the expiration of the term of the Corporation or the period of supersession of the Corporation, as the case may be.]