Hello! https://www.openstreetmap.org/node/12092309690/history has shop = duty_free that was added in this edit (if I checked things correctly)
shop=duty_free? What is actually sold here? Tobacco? Alcohol? Jewellery? Chocolate? migrating to shop=yes duty_free=yes sounds well, but there is also duty_free=refund... So it needs in-place survey to check to fix