Coop smoke hand grenades cause a CTD when thrown into water

[Carkidd]

Probably already known, and easy to replicate- just throw one into any body of water. A CTD will occur a few seconds after the smoke grenade detonates.

However, this does not occur with coop UGL/rifle grenade smoke, which should spawn the same bot occlusion collider.

[Mineral]

fixed for next release!