Importing json adds the object to the scene

[theripper93]

When using the loader to load a particle system from a json, the particle system is added to the scene without any code that explicitly adds it to the scene. See fiddle

https://codesandbox.io/s/three-quarks-atom-particle-system-forked-lqtg38?file=/index.html

the scene.add() is commented out but the effect is still visible

[Alchemist0823]

Hi @theripper93, this was fixed in 0.10.0. https://codesandbox.io/s/three-quarks-atom-particle-system-forked-8o9wm0?file=/index.html