System Information
Operating system: Windows 10 Pro
Graphics card: GTX1080ti

Blender Version
Broken: v2.81master and 2.82 alpha
Worked: v2.80

Short description of error
Recently I was trying to learn the TIGER SHADER from Daniel Bystedt's presentation, and I found out that when you combining the UVmap node with particle hair, it becomes kinda broken.
I simplified the scene by setting some fur on a Suzanne model, then comparing the UVmap node and the Texture Coordinate node, plug them directly to the texture, then the Principled BSDF. You can see that even they are using the same default UV set, the result are different.