Simulation space affects the view direction within the shader.

Repro steps:
1. Open Scene1 from attached project.
2. Select the Particle System from the hierarchy and simulate for a second or two.
3. Press Pause and rotate in the scene view around the particles.
4. Particles which were moving towards the camera ought to be green, those moving away - red. They are not.
5. Switch the particle space to World.
6. Observe how particles appear properly now.

Notes:
- Not a regression (by dev)
- Dev suggested fix in comments.