`pcoGeometry` is undefined during clone, causes an error

[wbobeirne]

Sorry for the obfuscated error, but I'm getting an uncaught error when I attempt to clone a scene with point clouds in it. It looks like this constructor is getting called without the pcoGeometry when the scene is cloned:

potree-core/source/point-cloud-octree.ts

Line 61 in 238198b

this.root = pcoGeometry.root;

Not sure if this is a three problem with calling constructors improperly, or a potree problem where it needs to be more defensively coded.

[tentone]

Thanks a lot for reporting.

Will take a look into this one