Beacon beams become thinner when using a spyglass in third person

Normally, beacon beams are rendered thicker the further away you are. When using a spyglass in first person mode, the beacon beam renders its normal thickness. The problem is that this happens even in third person mode, and the beacon becomes thin again.

Steps to reproduce:
1. Build a powered beacon
2. Go far away from it and equip a spyglass
3. Press F5 and use the spyglass
4. Observe the thickness of the beacon beam changing

Expected result: The beacon beam thickness does not change
Actual result: The beacon beam thickness changes