I assume that you are referring to JAR-FCL 1.495(b), that states:
"Provided that an IR(A) is obtained in accordance with (a) above, a pass in the ATPL(A) theoretical knowledge examination will remain valid for a period of 7 years from the last validity date of the IR(A) entered in the CPL(A) for the issuance of an ATPL(A)." If this is the case then the same provision has been carried forward to Part-FCL in FCL.625 IR(d).
I have to say that it does not surprise me that the CAA have not heard of this - their knowledge of the current requirements, let alone the forthcoming regulations, seems, at best, limited.