In crafting any component of a firework (a Firework Star or Firework Rocket) if you place redstone dust in the bench, it will use up the dust, but it doesn't seem to affect the final product at all.
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Duplicate of MC-4191 , please use the search function to see if your bug has already been submitted. Currently over 30% of tickets are being closed as duplicate.
look at my last bug report...