(1) All conveyances of any estate or interest in the estate of a deceased person made to a purchaser either before or after the commencement of this Act by a person to whom representation has been granted are valid, notwithstanding any subsequent revocation or variation, either before or after the commencement of this Act, of the grant.
(2) This section takes effect without prejudice to any order of the court made before the commencement of this Act, and applies whether the deceased died before or after such commencement.