Break when layer height is 0
Break when layer height is 0

After discussing this with several colleagues, this seems to be the desired behaviour.
totalretribution/CuraEngine,ROBO3D/CuraEngine,ROBO3D/CuraEngine,Ultimaker/CuraEngine,totalretribution/CuraEngine,markwal/CuraEngine,pratikshashroff/pcura,pratikshashroff/pcura,pratikshashroff/pcura,markwal/CuraEngine,alephobjects/CuraEngine,alephobjects/CuraEngine,totalretribution/CuraEngine,markwal/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine,Ultimaker/CuraEngine