This act shall not in any manner be construed as affecting the validity of any tax levies authorized to be made under article 53 of chapter 72 of the Kansas Statutes Annotated prior to the effective date of this act, nor shall this act in any manner be construed as affecting the validity of any bonds issued or authorized to be issued under article 53 of chapter 72 of the Kansas Statutes Annotated prior to the effective date of this act.