Game Version number: 1.5.0.14
Modded?: No

Issue Description:
In previous versions of the game, when aiming down sights and the weapon collided with an obstacle (e.g. a wall), the weapon and aim would be lowered. Once the obstacle was no longer in the way, the weapon would automatically return to a combat-ready position and aiming would resume automatically.
In version 1.5, this behavior is broken: aiming does not resume automatically after the obstacle is gone. This is highly frustrating and interrupts gameplay fluidity.