Article 3 (commencing with Section 640), Chapter 5 of the revised Banking Law applies to any distribution to its shareholders made after January 1, 1979, by a subject institution existing on January 1, 1979, except that any such distribution effected pursuant to a contract for the purchase or redemption of shares entered into by such subject institution prior to January 1, 1979, may be made if permissible under the applicable provisions of the revised Banking Law and the new General
Corporation Law or under the applicable provisions of the prior Banking Law and the prior General Corporation Law in effect at the time such contract was entered into.