Fix of d146a0237e51b15ba39bb5c2a45e9d208e50b4cf (reworked infill generator to merge regions with the same properties).
Fix of d146a0237e51b15ba39bb5c2a45e9d208e50b4cf
(reworked infill generator to merge regions with the same properties).

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