System Information
Operating system: linux x64 Ubuntu
Graphics card: Nvidia GTX 1080

Blender Version
Broken: 2.80 2018-12-20 Hash 36121a1bdcd8

Short description of error
Adding a curve does not display in viewport. Only appears when "Extrude" under "Geometry" option is used.

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