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  1. Minecraft: Java Edition
  2. MC-122008

CustomPotionEffects in arrow entities duplicates with '/execute store' and isn't affected by '/data remove'

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    Details

    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: Minecraft 17w47a, Minecraft 17w47b, Minecraft 17w48a, Minecraft 17w50a, Minecraft 18w01a, Minecraft 18w03b, Minecraft 18w21a, Minecraft 18w21b, Minecraft 1.13-pre1, Minecraft 1.13-pre2, Minecraft 1.13-pre3, Minecraft 1.13-pre4, Minecraft 1.13-pre5, Minecraft 1.13-pre6, Minecraft 1.13-pre7, Minecraft 1.13, Minecraft 18w31a, Minecraft 1.13.1, 1.15.2, 20w17a, 20w21a, 1.16.4, 20w48a
    • Fix Version/s: None
    • Confirmation Status:
      Community Consensus
    • Category:
      (Unassigned)

      Description

      The bug

      When using the /execute store command on a tipped arrow with custom potion effects, rather than replacing the respective NBT, it will duplicate the field first, THEN replace the respective NBT in the new field.

      How to reproduce

      1. Summon an arrow with CustomPotionEffects nbt data:
        /summon arrow ~ ~ ~ {CustomPotionEffects:[{Ambient:0b,ShowParticles:1b,Duration:1200,Id:26b,Amplifier:1b}]}
        
      2. Run an example execute store command:
        /execute store success entity @e[limit=1,type=arrow] CustomPotionEffects[0].Id byte 1 run say store
        
      3. Using data get on the entity results in duplicate entries:
        /data get entity @e[type=arrow,limit=1] CustomPotionEffects
        Result
        Arrow has the following entity data: { 
          CustomPotionEffects: [
            {Ambient: 0b, ShowParticles: 1b, Duration: 1200, Id: 26b, Amplifier: 1b}, 
            {Ambient: 0b, ShowParticles: 1b, Duration: 1200, Id: 1b, Amplifier: 1b}
          ]
        }
        

      Using /data remove doesn't seem to modify the CustomPotionEffects tag at all.

      /data remove entity @e[limit=1,type=arrow] CustomPotionEffects[0]
      

      using this and then /data get gives the same results as listed above.

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              Assignee:
              Unassigned Unassigned
              Reporter:
              MukiTanuki MukiTanuki
              Votes:
              12 Vote for this issue
              Watchers:
              13 Start watching this issue

                Dates

                Created:
                Updated:
                CHK: