I think the title says it all. But OK...
When using the recipe book, it's impossible to create a dispenser although all the necessary ingredient are present. The bow (no matter if it's damaged or perfect) doesn't appear in the recipe, and, if clicked, the recipe produces a dropper.
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We're tracking this issue in MC-129057, so this ticket is being resolved and linked as a duplicate.
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Duplicates MC-129057