fix bug and possible crash in overloaded method PropertyLinkSubList::setValues
fix bug and possible crash in overloaded method PropertyLinkSubList::setValues

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