The way iPickMinChance is used is confusing

I'm talking about this function:

https://gitlab.com/OpenMW/openmw/-/blob/master/apps/openmw/mwmechanics/pickpocket.cpp?ref_type=heads#L31

Specifically this part:

        if (t < pcSneak / iPickMinChance)
        {
            return (roll > int(pcSneak / iPickMinChance));
        }
        else
        {
            t = std::min(float(iPickMaxChance), t);
            return (roll > int(t));
        }
    }

What I would expect is for iPickMinChance to be used like iPickMaxChance - as a clamp on the probability. Something like:

            t = std::max(float(iPickMinChance), t);
            t = std::min(float(iPickMaxChance), t);
            return (roll > int(t));

Instead we get this whole other logic - which leads to an exact inverse of what I'd expect - increasing the iPickMinChance actually reduces your chances of successfully pickpocketing. If iPickMinChance is set to 100 - which I'd expect to mean guaranteed success - then pcSneak / iPickMinChance would be smaller than if set to the default of 5, meaning a higher chance of failure. I know pickpocketing odds have been relitigated several times and that is not my goal here, but I see no explanation for this counterintuitive phenomenon.