I never compared, but good find. I would assume it's a bug, but I am not a dev so it might be for a reason. Hopefully, a team member can chime in.
Meganoth, it was random in the creative menu in A20 and I THINK A19. A19 was a while ago, so I may be wrong, but if you type M60 and take a bunch, they're identical. When you type "M60" again, the stats change with each keypress.