Add missing break in switch statement
Add missing break in switch statement

This explains quite a lot about those z-seam positions actually...

Discovered during development on issue CURA-4523.

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