System Information
Operating system: Windows 10
Graphics card: GTX 1030

Blender Version
Broken: 2.80, 26d5a3625ed, blender2.8, 2018-11-29
Worked: (optional)

UVs get scrambled when I apply a simple subdivision surface modifier

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).