ScrollWheel.stp has 15 holes, not 13

[HomerSp]

Don't know if I'm doing something wrong, but when I open ScrollWheel.stp in FreeCad I see it has 15 holes, not 13 like the STL.
I probably wouldn't even have noticed this if it wasn't for the fact that when I had printed the step file, the scroll direction would be reversed. Not sure what causes this, but I'm guessing it has something to do with the holes being slightly smaller?

[joh]

Looks like only the STL was updated in 72aa8b7 and not the STEP file. Would be great if @ploopyco could update the STEP as well, but seems unlikely given that this issue has been open for almost five years 😢