FULLPIPE: Left Handle vanishes on teleporting

[r41k0u]

In Scene 13, if we interact with the Left Handle and teleport somewhere else before our inventory updates, we would find that the left handle has vanished upon returning to Scene 13.

[r41k0u]

Steps to replicate:

1. Load fullpipe.s10
2. Give chewing gum to guard
3. Use chewing gum on right handle to uncoil the bridge
4. Cross the bridge
5. Interact with the left handle using the hammer
6. (BE VERY QUICK!) Teleport to another scene before the hammer leaves your inventory
7. Come back to Scene 13

This bug can also be replicated when you are trying to take the hammer away instead of putting it below left handle (If the hammer was already placed there). In that case teleport before the hammer enters your inventory