MC-142735Incorrect/Different '/data modify' behavior
I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
Place down any tile entity which has an empty inventory. Run:/data modify block <pos> Items[{Slot:0b}] set value {Slot:0b,id:"minecraft:stone",Count:1b}
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality dynamically).
Modify the first slot of a tile entity's inventory (assuming it's a stone item):/data modify block <pos> Items[{Slot:0b}].id set value "minecraft:stone"
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Created Issue:
Incorrect "/data modify" behavior?
I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality).
The data bugfixes in 19w03a might be the cause?
I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality).
The data bugfixes in 19w03a might be the cause?
I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
Place down any tile entity which has an empty inventory. Run:/data modify block <pos> Items[{Slot:0b}] set value {Slot:0b,id:"minecraft:stone",Count:1b}
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality dynamically).
Modify the first slot of a tile entity's inventory (assuming it's a stone item):/data modify block <pos> Items[{Slot:0b}].id set value "minecraft:stone"
Incorrect"/data modify"behavior?Incorrect/Different '/data modify' behavior
![[Bot] Arisa](../../../data/assets/gravatar/mustek2.png){kind=small}
Could you please provide exact commands and describe the actual behavior to make reproducing this easier?
I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
Place down any tile entity which has an empty inventory. Run:/data modify block <pos> Items[{Slot:0b}] set value {Slot:0b,id:"minecraft:stone",Count:1b}
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality dynamically).
Modify the first slot of a tile entity's inventory (assuming it's a stone item):/data modify block <pos> Items[{Slot:0b}].id set value "minecraft:stone"I've noticed that data modify behaves differently since snapshot 19w03a.
In contrast to previous snapshots:
- Trying to write to a non-existent list-NBT-path will no longer generate its path (non-list paths still work).
Place down any tile entity which has an empty inventory. Run:/data modify block <pos> Items[{Slot:0b}] set value {Slot:0b,id:"minecraft:stone" ,Count:1b}
- The attempt to write to a path which already contains the same data will no longer be rejected (You were able to use this to check for NBT equality dynamically).
Modify the first slot of a tile entity's inventory (assuming it's a stone item):/data modify block <pos> Items[{Slot:0b}].id set value "minecraft:stone"
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