shape.CircleInCirlce using / passing wrong property?

[PaulEden]

function mist.shape.circleInCircle(c1, c2, full)
    if not full then -- quick partial check
        if mist.utils.get2DDist(c1.point, c2.point) <= c2.radius then
            return true
        end
    end

Property "point" of objects c1 and c2 doesn't exist in the context of being called from shape.InsideShape and its associated example on hoggit
https://wiki.hoggitworld.com/view/MIST_insideShape that provides vec3 objects as parameters.