Operating system: Windows 10
Graphics card: NVidia GeForce GTX 1070/PCIe/SSE2, driver 4.5.0 NVIDIA 419.67'
Broken: rB7d6a9b551759, (blender2.8 HEAD)
Short description of error
Applying object scale change the look of the object in workbench.
Exact steps for others to reproduce the error
In the file above apply scale (Ctrl + A > Scale). You should see the look in the viewport changing drastically.
Note that even if I disable Auto Smooth from the Mesh panel the issue is still there.