vtkSurfaceNets3D: Order of BoundaryLabels do not seem to reflect direction of triangle normals

Yes, please create an issue on gitlab. There are a couple of approaches to fixing this issue: 1) when the scalar 2-tuple (s0,s1) is reordered so that (s0<s1), the corresponding faces need to be reversed; or 2) give up on reordering (s0,s1), it’s not clear that such ordering is needed.

I should be able to get to this in August.