Mouse still affects WASD keys when mouselook is locked.

[Alistair Buxton]

In Rift mode, mouselook is disabled. Moving the mouse will not rotate the camera, but the WASD keys still behave as if the player is rotated. That is, if you move the mouse, 'W' will no longer move you forwards when you are looking forwards.

To reproduce:

1. Enable rift mode.
2. Hold 'w'.
3. Move the mouse left and right.