ok so, let's say you find the wrong ID of said item (say gold) and paste it on the pointer of the item on the ground(say cloth),
just you click other item (not picking up), it'll update the visual of the item(cloth), if the swapped item gone from the dropped list just revert the pointer value, and click other item again to update the visual, that's just a way to basically check if the dword value of item (gold) you copied is an actual item id pointer or not. if it does it'll show the item, if not it'll just gone, and you can validate the updated pointer by picking up other item. I've seen people just blindly copies some ids, i learnt this game loves change where the IDs are, sometimes it even hid it under several pointer calls. Take christmas gift box item ID, it's still inside the game but it's so hard to find where the ID located at, even using queries is hard.