Intended Behavior: shooting a firework rocket (crafted with firework stars in it) at a player on the same team as you does 0 damage if friendlyFire is disabled, in accordance with how melee weapons and arrows work.

Current Behavior: shooting a firework rocket at your teammate HURTS them with the explosion, which is bizarre and an utter showstopper for team-based PvP minigames

How to Replicate:
• Create a team with /team
• Put another player on it with /team join <whatever you called ur team> <player name>
• Run /team modify <whatever you called ur team> friendlyFire false
• Craft a firework rocket with at least one firework star
• Load in into a crossbow
• Fire it at your teammate