Which is why I wanted to evolve 'NPPL' versions of the current exams with the JAR-specific questions removed, but introduce a 'JAR-upgrade' paper to be taken later by those wishing to upgrade to a JAR-FCL PPL which would incorporate all such questions. But the CAA wouldn't accept that........
The FE handbook specifies when JAR-FCL applicants shall be allowed a 'free' PPL Skill Test re-test, I abide by those. But I don't consider that a 'partial pass' where the applicant has failed an element merits a free re-test.