In all cases where there has heretofore been an attempt to incorporate a public corporation under the provisions of this article, and a certificate of incorporation with respect to such corporation has been filed in the office of the judge of probate of the county in which such corporation was sought to be incorporated, but the attempted incorporation is invalid because of some irregularity in the procedure followed, the attempted incorporation of such public corporation with respect to which such a certificate of incorporation has been filed shall be and hereby is validated ab initio, notwithstanding any irregularity in the procedure for incorporation of such corporation, including, without limiting the generality of the foregoing:
(1) The failure of the judge of probate in whose office such certificate of incorporation was filed to examine such certificate of incorporation or to enter an appropriate order with respect thereto;
(2) The failure of the governing body of the county to whom application was made for the incorporation of such corporation to adopt the resolution required by Section 11-88-3, as amended, or to include in such resolution the appropriate findings;
(3) The failure of the persons making such application to the county governing body to sign the certificate of incorporation so filed in the office of the judge of probate;
(4) The fact that the certificate of incorporation so filed was not signed by not less than three of the persons making such application to the county governing body;
(5) The failure to file the certificate of incorporation within the time specified by statute after adoption by the county governing body of the appropriate resolution;
(6) The failure to attach to the certificate of incorporation any one or more of the documents required to be attached thereto at the time of such incorporation; or
(7) The inclusion in the certificate of incorporation of any matter not authorized to be included therein or contrary to the statutory requirements with respect to such corporation.