Operating system: windows 10
Graphics card: gtx 1070
Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen)
Short description of error
Baking result is different from what I have seen in render and has strange artifacts.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Create thin object as shown on the screens.
Create material with subsurface scattering as shown on the screens. Render preview:
Create sun lamp.
Run combined baking with default settings.
Look at the result
I tried to run the same baking in 2.79 and all was fine.