Operating system: macOS High Sierra version: 10.13.6 (Macbook Pro 2015)
Graphics card: Intel Iris Graphics 6100
Broken: Blender-2.80-1b6a394d862 (release date: Dec. 4th, 00:11:08)
Short description of error
A persistent graphical glitch in Edit Mode where there are hair-like extensions extruding from the vertices. Becomes longer/shorter when increasing/decreasing Vertex size in User Preferences. To clarify these are not the Normal lines.
Exact steps for others to reproduce the error
Simply open up most recent Blender 2.80 Beta build and go into edit mode. No other steps necessary.
Vertex size 4:
Vertex size 32: