Fixing one unit test, which seems to indicate that the refactoring fixed one issue (hopefully it was not that a newly introduced bug hides an old one).
Fixing one unit test, which seems to indicate that the refactoring
fixed one issue (hopefully it was not that a newly introduced bug
hides an old one).

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