Canomatic R 100/2 vs. Canon rf 100/2

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Hi all, I figure this could go in various forums, but going to the source (Hi, Peter) seemed the thing to do.

I'm wondering if those two lenses are the same formula in different mounts. The Canon Camera Museum shows them both as 4 groups, 6 elements, but with a different number of diaphragm blades.

I ask in part because I have one with, I guess, oil on the blades (it no longer opens up) and I'm wondering if it so good at f2 that it is worth either cleaning or having the blades removed (I have other 100's I would use if I wanted to stop down).

Thoughts about the lens formula or whether doing something is worthwhile?

Thanks.