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  1. Minecraft: Java Edition
  2. MC-122536

"set_nbt" function in loot table does not merge NBT to item

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 17w47b, Minecraft 17w48a
    • Fix Version/s: Minecraft 17w49a
    • Labels:
      None
    • Environment:
      Windows 10, Minecraft's included Java
    • Confirmation Status:
      Confirmed

      Description

      The bug

      "function": "set_nbt" in loot tables does nothing. Loot tables that worked in 1.12 don't show an error when loaded, but when the item is dropped the NBT data is not applied to it. This causes, for example, uncraftable potions in fishing and uncraftable arrows dropped by strays.

      Code analysis

      It appears that in 17w48a's bka class, the NBT data from the item is merged to the NBT data from the table, but is not merged back onto the item.

        Attachments

          Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MC-122606 Strays don't drop arrows of slowness

          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. MC-122799 Potion from fishing is uncraftable potion

          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. MC-122816 You can get an uncraftable potion from a fishing rod

          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. MC-122850 set_nbt loot table function doesn't work

          • Resolved

            Activity

              People

              • Assignee:
                dinnerbone [Mojang] Nathan Adams
                Reporter:
                RichardAHallett Richard A. Hallett
              • Votes:
                11 Vote for this issue
                Watchers:
                9 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:
                  CHK: