Notwithstanding the provisions of sections 9-168b and 9-169, any change or changes in voting districts made in any municipality in accordance with the provisions of section 9-169, to conform, or facilitate conforming, to any plan of districting for the General Assembly or for the congressional districts, adopted by the General Assembly or determined by any reapportionment commission, appointed in accordance with the provisions of article 26 of the amendments to the Constitution of Connecticut, or ordered by a court of competent jurisdiction, or to conform, or facilitate conforming, to any order entered by a court of competent jurisdiction relating to a plan of districting for the General Assembly or for the congressional districts, adopted by the legislative body of the municipality shall be deemed effective as of the date of adoption, except as provided in section 9-169e.