Attacher: fix superPlacement applied twice in some cases
Attacher: fix superPlacement applied twice in some cases

superPlacement was applied twice on line and point attachment modes that
re-use 3d attachment modes code. Fixed.

wood-galaxy/FreeCAD,timthelion/FreeCAD,usakhelo/FreeCAD,usakhelo/FreeCAD,Fat-Zer/FreeCAD_sf_master,maurerpe/FreeCAD,bblacey/FreeCAD-MacOS-CI,timthelion/FreeCAD,chrisjaquet/FreeCAD,wood-galaxy/FreeCAD,Fat-Zer/FreeCAD_sf_master,timthelion/FreeCAD,maurerpe/FreeCAD,chrisjaquet/FreeCAD,Fat-Zer/FreeCAD_sf_master,bblacey/FreeCAD-MacOS-CI,timthelion/FreeCAD,chrisjaquet/FreeCAD,maurerpe/FreeCAD,Fat-Zer/FreeCAD_sf_master,bblacey/FreeCAD-MacOS-CI,bblacey/FreeCAD-MacOS-CI,timthelion/FreeCAD,timthelion/FreeCAD,bblacey/FreeCAD-MacOS-CI,maurerpe/FreeCAD,wood-galaxy/FreeCAD,usakhelo/FreeCAD,usakhelo/FreeCAD,usakhelo/FreeCAD,usakhelo/FreeCAD,chrisjaquet/FreeCAD,chrisjaquet/FreeCAD,wood-galaxy/FreeCAD,chrisjaquet/FreeCAD,bblacey/FreeCAD-MacOS-CI,bblacey/FreeCAD-MacOS-CI,maurerpe/FreeCAD,usakhelo/FreeCAD,chrisjaquet/FreeCAD,wood-galaxy/FreeCAD,Fat-Zer/FreeCAD_sf_master,wood-galaxy/FreeCAD