Input output slots block player interaction

When setting a slot id to be both an input slot and an output slot on the block, it will block hoppers from inserting or extracting items from the slot, but it will also block players from interacting with the slot, which I believe is unintended behaviour as you can set the slot to block player interaction in the gui. Fixing this would allow things like upgrade modules as an example, right now if you were to try to make a slot that only players can interact with, it would be impossible without hoppers being able to either insert items into these player only slots, or hoppers being able to extract the items.