Subsection (12) of section eighty-four of the Law of Property Act, 1925 (which provides that the procedure under that section for discharging or modifying covenants affecting freeholds shall extend to leaseholds held under a term of more than seventy years of which at least fifty years have expired) shall have effect as if for the word " seventy " there were substituted the word " forty " and for the word " fifty " there were substituted the word " twenty-five ".

This section shall have effect whether the term in question was created before or after the commencement of this Act.