Cutting Copper Blocks

When cutting a single Copper Block on a Stonecutter it gives you x4 Cut Copper Blocks, while the crafting recipe is x4 Copper Blocks = x4 Cut Copper Blocks. This may be intentional as you can’t duplicate Copper Ingots with this method but I’m not sure if turning a single Copper Block into x4 Cut Copper Blocks is supposed to happen or if it’s just supposed to be 1:1. This also works with Chiselled Copper Block, Copper Grate, Cut Copper Stairs, and it gives you x8 Cut Copper Slabs.