(a) All deeds or conveyances of any street, alley, or public ground, or any portion of streets, alleys, or public grounds, executed by any city of the first class, city of the second class, or incorporated town in the State of Arkansas, conveying all or any portion of the street, alley, or public ground which before the making of the deed had been dedicated to public use, and made by authority of the city or town council of the city or incorporated town named as grantor in the deed, prior to 1960, shall be validated.
(b) No such deed made as set forth in subsection (a) of this section shall be impeached or its validity brought in question on the ground that the deed was made without authority of law. However, this section shall not change the effect of any judgment or decree rendered by any court of this state before the passage of this section in any cause wherein the validity of the deed has been brought in question, nor shall this section be pleaded in any action now pending in any of the courts of this state wherein the validity of any deed executed by any city or town of the type referred to in subsection (a) of this section is a matter of litigation.