Most Clubs probably require an annual Club check.
Make sure it's at least 60 min and it will also satisfy the training flight requirement for revalidating by experience.
It really isn't worth flapping your handbags over...
flybymike, you asked:
It is completely beyond my understanding why they do not undo this obvious cock up, such that all of the paperwork can be dealt with as a single exercise just as soon as the experience requirements and the instructor flight have been completed within the second year. This was certainly the case until the inadvertent rewrite of the rules. Are they just too proud to admit to a stupid mistake?
To which the answer is, basically, 'YES'. If they kept having to admit they'd porked up some piece of €urocracy or other, then it would seemingly not reflect well on the 'competent authority' the CAA are supposed to represent.
It took nigh on 5 years to sort out their NPPL cock-ups, for example....