[BUG] stuck "passenger", no ammo is lost

[Sebastian]

Description
Whenever a player tries to enter as passenger in a stuck vehicle, he gets stuck and can fire without losing ammo.
(or even see the bullets fired, but the server is receiving the shoots and sends them to the game)

Reproducible
Always

What you were doing when the bug happened
Trying to enter as passenger in a stuck (in a wall) bike.

Credits
Tommi4kaVar4etti

Video
http://youtu.be/gGPDDcNYaos