Fixed slab slicing for special cases (slicing plane intersects object plane).
Fixed slab slicing for special cases (slicing plane intersects object
plane).

prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r