General continuance of matters

7.  Subject to the other provisions of these regulations, any of the following things done or treated by virtue of any enactment as having been done by, or to, or in relation to, any authority from whom any area is transferred by the order in connection with the discharge of any of their functions in relation to such area, that is to say—

shall, as from the appointed day, be treated as having been done by, to, or in relation to, the authority by whom the functions become exercisable in the area on and after that day by virtue of the order, and any such thing shall as from that day have effect as if any reference therein to the first-mentioned authority were a reference to the authority secondly mentioned.