MC-248824Loot table entry of type "dynamic" copies list reference rather than deep copying items
When using /loot replace ... to transfer the contents of a shulker box to another container (e.g. a chest) using this loot table (see below), the item list REFERENCE is transferred rather than the list contents being deep-copied. This results in a pair of "entangled" containers where removing any of the items from either container will result in the respective item being removed from the other.
minecraft/loot_tables/blocks/shulker_box.json:
{
"type": "block",
"pools": [
{
"rolls": 1,
"entries": [
{
"type": "dynamic",
"name": "contents"
}
]
}
]
}
Setup:
- Create a world (a flat world will do)
- Download this datapack and enable it in the world (it only contains the loot table in question)
- Place down a shulker box and a chest
- Place items inside the shulker box
- Run this command: /loot replace block <CHEST coords> container.0 27 mine <SHULKER BOX coords>
- See that the contents of the shulker box seem to have been copied to the chest.
Observations:
- When taking any items out of either the chest or the shulker box, the respective item will be removed from the other container, too
- When destroying the chest (dropping all the items onto the ground), all the transferred items will no longer be in the shulker box
- Putting items in either of the containers does not transfer them to the other, and they will not be deleted when either of the blocks is destroyed
Linked Issues
Created Issue:
dynamic shulker box loot table copies list reference rather than deep copying items
When using /loot replace ... to transfer the contents of a shulker box to another container (e.g. a chest) using this loot table (see below), the item list REFERENCE is transferred rather than the list contents being deep-copied. This results in a pair of "entangled" containers where removing any of the items from either container will result in the respective item being removed from the other.
minecraft/loot_tables/blocks/shulker_box.json:
{ "type": "block", "pools": [ { "rolls": 1, "entries": [ { "type": "dynamic", "name": "contents" } ] } ] }
Setup:
- Create a world (a flat world will do)
- Download this datapack and enable it in the world (it only contains the loot table in question)
- Place down a shulker box and a chest
- Place items inside the shulker box
- Run this command: /loot replace block <CHEST coords> container.0 27 mine <SHULKER BOX coords>
- See that the contents of the shulker box seem to have been copied to the chest.
Observations:
- When taking any items out of either the chest or the shulker box, the respective item will be removed from the other container, too
- When destroying the chest (dropping all the items onto the ground), all the transferred items will no longer be in the shulker box
- Putting items in either of the containers does not transfer them to the other, and they will not be deleted when either of the blocks is destroyed
Attachments3
![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
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![[Mod] j_p_smith](../../../data/avatars/users/92851.png){kind=small}
dynamic shulker box loot tablecopies list reference rather than deep copying itemsLoot table entry of type "dynamic" copies list reference rather than deep copying items
![[Mod] ampolive](../../../data/avatars/users/18949.svg){kind=small}
![[Mojang] Moesh](../../../data/avatars/users/10122.svg){kind=small}
Lowrelates to
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
relates to
Relates to/duplicate of MC-153058