To reproduce:
1. Open attached project (repro857495.zip)
2. Play test scene
3. Open scene view
4. Select Particle system object and move it in the scene view
5. Notice that particles are emitted
6. Select parent of Particles System and move it

Actual: Particles are not emitted when moving parent object
Expected: Particles should be emitted when moving parent object

Reproducible: 5.5.0b1, 5.5.0f3, 5.6.0a6
Not reproducible with 5.4.3p2
Regression introduced in 5.5

Reproducible with Rigibody when Is Kinematic is disabled. Also, reproducible with Rigidbody2D when Body Type is set to Dynamic/Static