A field the definition doesn't have is refused with the fields it does have, instead of reporting success and changing nothing (#1491).
Co-Authored-By: Erikas <erkexzcx@users.noreply.github.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
When projecting a face's boundary loop onto its surface fails from an unhinted first point, the walk is retried once from the first point an unhinted search does find; a walk that succeeds is unchanged. A fillet strip on an extended surface now meshes, so the rim cut in the reported case builds in one boolean.
Ruled B-spline sheets that are circular cylinders or cones are written as CYLINDRICAL_SURFACE and CONICAL_SURFACE, so other readers no longer bound the part by sheets that reach past its faces.
Erikas