[Gothic 1] Trading with Merchants working the "Gothic 2 way" allowing too much ore

[Abendlied]

Game:
Gothic I

Short Description/Observation:
Trading with NPC merchants instantly sells/buys items from the ore pool, similar how Gothic 2 works with gold. In Gothic 1 this causes unlimited ore availability for each merchant and the unique item to item trading-by-value characteristic of a colony with limited resources is lost. Also leading to too much ore availability already in first chapter.

Expectation: Ore should be treated as an limited item during trade, not taken from the money pool.

Steps to reproduce:
Go into trade mode with any merchant.

Additional Info:
Screenshot showing trade window where items are instantly sold, not swapped/traded.

[Abendlied]

As potential side effect of the above, I observed that NPCs that knock the player down will no longer take ore from the player. I assume ore is referenced as an item that does not exist in that form due to the ore pool principle from GII.

Savegame to reproduce (Kharim arena fight, ore in inventory):
save_slot_4.sav.tar.gz