Operating system: Win10 64
Graphics card: gtx1050ti
Broken: 2.79, 2.8
Short description of error
Random output from Object Info depends on every object in scene, even Empties!
There are two identical scene sets with linked objects, but Empty belongs to Scene.001 only. Cube is instanced via duplifaces and Random produces different result if Empty isn't linked in both scenes.
Exact steps for others to reproduce the error
Open file, viewport render Scene and Scene.001