fix: conical overhang wouldn't do anything for an angle of zero (CURA-1412)
fix: conical overhang wouldn't do anything for an angle of zero (CURA-1412)

It should then drop any overhang down: \ becomes L

totalretribution/CuraEngine,Ultimaker/CuraEngine,alephobjects/CuraEngine,totalretribution/CuraEngine,ROBO3D/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine,Ultimaker/CuraEngine,ROBO3D/CuraEngine,totalretribution/CuraEngine,alephobjects/CuraEngine