A full revolve of a profile with more than one edge on the axis (a spherical shell's half ring:
both radial lines lie on it) took the generic sweep, built in place. Truck tessellates the
degenerate faces those edges sweep reliably only with the axis through the world origin, so on a
sketch plane off it the body measured about a third too large (a shell from r 18.5 to 40, 10 mm
above XY: 324 339 mm³ instead of 241 561), and booleans with it failed or removed the wrong side.
Such profiles are now swept about an axis through the origin and translated into place, as
revolve_touching_axis already does for profiles with one edge on the axis.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
