If the appellate division disposes of all the issues in the action its order shall be considered a final one, and a subsequent appeal may be taken only from that order and not from any judgment or order entered pursuant to it. If the aggrieved party is granted leave to replead or to perform some other act which would defeat the finality of the order, it shall not take effect as a final order until the expiration of the time limited for such act without his having performed it.
New York Legal Code