8E+WSection 17(2) shall be treated as if for the words “the authority proposing to acquire it have served a notice to treat in respect thereof, or an agreement has been made for the sale thereof to that authority” there were substituted the words “an order under section 76 of the Housing Act 1988 vesting the land in which the interest subsists in a housing action trust has come into force, or an agreement has been made for the sale of the interest to such a trust”.