If at any time before an allotment shall have been made by the valuer any person shall sell his right or interest in the land to be inclosed, or any part thereof, to any person, the valuer shall, upon such sale being certified to him in writing by the vendor, make an allotment of land to the purchaser, or to his heirs or assigns, in respect of the right or interest so sold; and every such purchaser, or his heirs or assigns, shall from the confirmation of the award hold and enjoy the land so to be allotted to him in such manner as the vendor might or ought to have done in case such sale had not been made; and it shall be lawful for any person who shall be entitled to any allotment under this Act to devise, convey, surrender, or otherwise assure the same allotment, or all or any part of his interest therein, at any time before the confirmation of the award; and every such devise, conveyance, surrender and assurance shall be of the same validity as if the same had been made after the confirmation of the said award; and it shall be lawful for any person entitled to any allotment to sell, dispose of, or convey the estate in right of which he may be entitled to such allotment separate from and retaining to himself such allotment, or the right thereto; and the valuer is hereby required to award such allotment accordingly.