Sketcher: [skip ci] fix changing multiplicity of a spline for Windows builds if PCH is enabled
Sketcher: [skip ci] fix changing multiplicity of a spline for Windows builds if PCH is enabled

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master