I agree, I have seen photos of 'used' extractors that even have a long groove leading down the firing pin side of the extractor, my guess is to clear other firing pin tips from some old repairs.
The .32 Long RF conversion to CF requires a 'plug and re-bore' activity to position the firing Pin Tip where it needs to be. I suspect some of these were done by making the firing pin tip a long rectangle rather than a round pin.
Best Regards,
Chev. William