2E+WWhere undivided shares in land, created before the commencement of this Act, fall into possession after such commencement, and the land is not settled land when the shares fall into possession, the personal representatives (subject to their rights and powers for purposes of administration) or other estate owners in whom the entirety of the land is vested shall, by an assent or a conveyance, give effect to the foregoing provisions of this Part of this Schedule in like manner as if the shares had fallen into possession immediately before the commencement of this Act, and in the meantime the land shall be held on the statutory trusts.