Bows, arrows, and weapon upgrades

Game mode: [Online | Singleplayer]
Problem: [ Bug | Misc]
Region: [Here]

As per this thread: How Archery Damage is Calculated there is a bug where arrows will overwrite bow upgrades and upgrading a bow will make already equipped arrows cease being used until re-equiped. It seems arrows themselves are being registered as a weapon upgrade when they should be a separate item class.

Steps on how to reproduce issue:

  1. Get bow and put on upgrade
  2. equip arrow
  3. see upgrade bonus not apply on attacks