The bug
Clicking on the dispenser recipe when you only have an enchanted bow in your inventory places the other ingredients anyways creating the dropper recipe. This will likely result in many players crafting a dropper by accident.
Expected would be that the dispenser recipe is marked as unavailable when you only have an enchanted bow.
I assumed this was WAI, since enchanted bows can be used to craft dispensers.
It was previously suggested in MC-117563 that the dispenser recipe should click in but not move named or enchanted bows, as it is more problematic to accidentally destroy a nice bow than to accidentally craft a dropper.
To me, showing the dispenser recipe as "unavailable" when you still can craft a dispenser (using named/enchanted bow) is misleading.