Item Broker Results list not refreshing completly when someone sells twice the same item

[daamaa 0]

Reproduction case :

• Clic on an item on Item Broker --> you see that "Seller A" is selling it
• Clic on another item that another seller (lets say "Seller B") is selling TWICE, so his name appears twice on the results list
• Clic back on the previous item --> you now see "Seller A" AND "Seller B" on the results list

It might be a bug where Results list is not refreshed properly because only one index of "Seller B" has been removed from results list