GameTest: setting amount on an ItemStack doesn't update the actual amount in the stack ingame

When using the GameTest framework, you can look up the amount of an item stack. According to the documentation, this amount property is read/write (while the other properties on the item stack are read-only). 

However, trying to change the amount in the stack by changing the value (which I assume is the intended use for the r/w-ness of the property), the stack in the game is not updated and keeps the amount as is.

Reading the value after setting it does return the updated value.

I don't know if this is intentional, but if it is, I don't think having this property as r/w doesn't make sense as it creates the wrong expectations. I would rather have it to work as I expect to, though.

I'm building this on a Windows 11 PC, but it would apply for all platforms using Realms or a server.