parametricCurve produces wrong result with high stop value

[DaiterGG]

changing stop value from 3.8 to 4 produces corrupted spiral

from math import cos, pi, sin
import cadquery as cq

def helix():
    def func(t):
        x = cos(t*pi*2)
        y = sin(t*pi*2)
        z = t
        return (x, y, z)
    return func

p1 = (cq.Workplane("XY")
   .parametricCurve(helix(),stop=4).val()
)
show_object(p1)

Environment

OS: Windows 11

Was CadQuery installed using Conda?: No, installed with pip. Python 3.14.3

cadquery                                                2.8.0
cadquery-ocp                                            7.9.3.1.1