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  1. Minecraft: Java Edition
  2. MC-141815

Using /data modify to replace all list values with a different type wipes the list

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Details

    • Bug
    • Status: Resolved
    • Resolution: Fixed
    • Minecraft 18w50a
    • Minecraft 19w03a
    • None
    • Confirmed

    Description

      How to reproduce

      1. Create a list in an NBT-safe area (item tag tag).
        /setblock ~ ~ ~ chest{Items:[{id:tnt,Count:1b,tag:{custom_list:[1,2,3]}}]}
      2. Try to replace all values in the list with those of a different type.
        /data modify block ~ ~ ~ Items[0].tag.custom_list[] set value 5b

         The list is cleared. It also remains in an invalid empty state (see MC-141814).

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              boq [Mojang] Bartosz Bok
              tryashtar [Mod] tryashtar
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                Created:
                Updated:
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