§ 326. Article thirteen of military law, added by laws of nineteen hundred forty-one, chapter six hundred eighty-six. Wherever in any section or provision of Article 13 of the military law, added by laws of nineteen hundred forty-one, chapter six hundred eighty-six, as last amended by laws of nineteen hundred forty-seven, chapter three hundred fifty-six, a proceeding, remedy, privilege, stay, limitation, accounting or other transaction has been authorized or provided with respect to military service performed prior to April first, nineteen hundred forty-eight, such section or provision shall be deemed to continue in full force and effect so long as may be necessary for the exercise or enjoyment of such proceeding, remedy, privilege, stay, limitation, accounting or other transaction.