fix: high support roof doesn't crash angine any more (CURA-3821)
fix: high support roof doesn't crash angine any more (CURA-3821)

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