MG-42 has odd animation bug if the player un-deploys while firing

[cmbasnett]

Obviously this is incredibly minor but if someone's bored they can have a look at this. Reproduction steps are easy.

1. Deploy the MG-42.
2. Hold down the fire button.
3. While firing, hit the "undeploy" key (or simply hit any of the movement keys)

The MG-42 animation will play it's deployed "end fire" animation (note the swinging belt) for about 2 seconds before fixing itself.