Weapon swapping bug

[thaecrasis]

When you have a throwing weapon (kestrel in my case) with a stance, if you swap to kestrel + pistol (thereby not using the stance anymore), then swap back to your primary weapon, and immediately use a melee attack to swap to just the kestrel, it says you are [unarmed] but are still holding your kestrel but cannot use your stance combos anymore.

Seems to be 100% repeatable as well.
In step format:

1. Start in with thrown melee in hand showing your stance
2. Swap to pistol + thrown melee
3. Swap to primary weapon
4. Immediately swap to melee by using melee attack button.