9Where a person was sentenced to a term of imprisonment for less than eighteen months and was immediately before the commencement of section 60 of this Act in prison by reason of having been recalled under the said section 25, the said Schedule 1 and section 63(2) shall apply to him as they apply to a person mentioned in the said section 63(1) subject to the modification mentioned in the last foregoing paragraph, and he shall be treated for the purposes of that Schedule as if he had been recalled thereunder.