7S—A rehabilitation order may be made and confirmed notwithstanding that the effect of the order in excluding any land from a clearance area or from a housing treatment area is to sever that area into two or more parts; and in any such case the provisions applicable to the area in Part III of the Act of 1966 or in Part I of the Act of 1969, relating to the effect of a compulsory purchase order when confirmed and to the proceedings to be taken after confirmation of such an order, shall apply as if those parts formed one clearance area or housing treatment area, as the case may be.