(a) All acts and proceedings of commissioners of road improvement districts heretofore organized in the State of Arkansas under the general road law, commonly known as the Alexander Road Law, or under special acts, where bonds have been issued for the purpose of paying valid indebtedness of the districts and where the bonds have been delivered prior to January 1, 1927, are declared to be valid acts and proceedings as if all proceedings and formalities required by law had been fully complied with.
(b) All bonds so issued by the districts in payment of valid indebtedness thereof are valid and binding obligations upon the districts under all laws of this state as if all proceedings and formalities pertaining to the issuance of the bonds as required by law had been fully complied with.
(c) However, this section shall not affect or make valid any fraudulent acts on the part of commissioners of those districts and shall not validate any fraudulent issuance of bonds by the districts.