MC-192981Modifying entity attribute modifier values does not properly update nbt data
When using the "/data" command to modify entity attribute modifier amounts, nbt data is not updated/displayed despite returning a "success" when the command is executed. However, the desired value is grabbed when using the "attribute" command.
How to Reproduce:
Summon a dummy entity with a certain attribute (I chose max_health).
/summon minecraft:armor_stand ~ ~ ~ {Tags:["dummy"],Attributes:[{Base:20.0d,Name:"minecraft:generic.max_health"}]}
Add an attribute modifier of "Amount" 1.0 to max_health using the attribute command (see picture 1 to view the nbt after the attribute command was applied).
/attribute @e[tag=dummy,limit=1] minecraft:generic.max_health modifier add 0a-1a-2a-3a-4a test 1.0 add
Use the data command to modify the modifier "Amount" value to 2.0d (This should return successful).
/data modify entity @e[tag=dummy,limit=1] Attributes[{Name:"minecraft:generic.max_health"}].Modifiers[0].Amount set value 2.0d
Grab the modifier "Amount" value from the entity's nbt using the data command (This should return: 1.0d).
/data get entity @e[tag=dummy,limit=1] Attributes[{Name:"minecraft:generic.max_health"}].Modifiers[0].Amount
Grab the modifier "Amount" value using the attribute command with a scale of 1. This should return 2.0d, which is a discrepancy (see picture 2)
/attribute @e[tag=dummy,limit=1] minecraft:generic.max_health modifier value get 0a-1a-2a-3a-4a 1
Linked Issues
Attachments2
Created Issue:
Modifying entity attribute modifier values does not properly update nbt data
When using the "/data" command to modify entity attribute modifier amounts, nbt data is not updated/displayed despite returning a "success" when the command is executed. However, the desired value is grabbed when using the "attribute" command.
How to Reproduce:
Summon a dummy entity with a certain attribute (I chose max_health).
/summon minecraft:armor_stand ~ ~ ~ {Tags:["dummy"],Attributes:[{Base:20.0d,Name:"minecraft:generic.max_health"}]}Add an attribute modifier of "Amount" 1.0 to max_health using the attribute command (see picture 1 to view the nbt after the attribute command was applied).
/attribute @e[tag=dummy,limit=1] minecraft:generic.max_health modifier add 0a-1a-2a-3a-4a test 1.0 addUse the data command to modify the modifier "Amount" value to 2.0d (This should return successful).
/data modify entity @e[tag=dummy,limit=1] Attributes[{Name:"minecraft:generic.max_health"}].Modifiers[0].Amount set value 2.0dGrab the modifier "Amount" value from the entity's nbt using the data command (This should return: 1.0d).
/data get entity @e[tag=dummy,limit=1] Attributes[{Name:"minecraft:generic.max_health"}].Modifiers[0].AmountGrab the modifier "Amount" value using the attribute command with a scale of 1. This should return 2.0d, which is a discrepancy (see picture 2)
/attribute @e[tag=dummy,limit=1] minecraft:generic.max_health modifier value get 0a-1a-2a-3a-4a 1
Attachments2
![[Mod] tryashtar](../../../data/avatars/users/41963.png){kind=small}
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![[Mod] EVGENSYPERPRO](../../../data/avatars/users/92853.png){kind=small}
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Can confirm in 20w51a.
I cannot reproduce this issue in Minecraft 1.20.5 pre-release 1.