Jolt physics not re-applied to physics objects when loading a save game

[Rock48]

When loading a save, physics objects do not get re-initialized properly. The player can collide with them, and the physgun can move them, but they are stuck in place and new physics objects do not collide with them.

Reproduction steps:

1. Open any map in single-player
2. Spawn some props
3. Save (console save test)
4. Load (console load test)
5. Prop physics are broken

[Rock48]

By the way this is an absolutely brilliant project -- damn good work guys!