The charter of every social, patriotic and benevolent society incorporated by an act of the General Assembly of Virginia prior to the year 1900 for the purpose of perpetuating the memory of men in the military, naval and civil service of the Colonies and of the Continental Congress shall be deemed to have remained, and to be, in full force and effect notwithstanding the provisions of § 13.1-937 or any other statute enacted after January 1, 1950, or regulation pursuant thereto requiring the filing of any report or reports with the Commission. All such reports which under such statutes should have been so filed shall be filed with the Commission on or before August 1, 1986. Such corporation hereafter shall be deemed to hold its charter subject to the provisions of the Constitution of Virginia now in effect, and the laws passed in pursuance thereof.