Attribute Modifier UUID's clarification

[cwJn]

Working with attribute modifiers, but the explanation given on the wiki doesn't seem to match up with how they work in the base game. On the wiki, they state that every attribute modifier must have a different UUID to correctly be applied to the player. In the base game, however, each armour piece (head, chest, legs, feet) seems to have a UUID which it uses for armour, armour toughness, AND knockback resistance. These attribute modifiers have the same UUID, but different name strings and different attributes they are modifying. On the other hand, DiggerItem and SwordItem use different UUIDs for attack damage and attack speed, different name strings, and also obviously have different attributes. Can anyone provide clarification on how the UUIDs of attribute modifiers work?

[warjort]

https://minecraft.fandom.com/wiki/Attribute

  Quote

Note that attribute modifiers that have the same UUID and affect the same attribute do not stack; only the one that most recently affected a player or mob has an effect, overriding the previously affecting modifier(s).

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As it says, UUIDs must be unique per attribute if you want the modifiers to stack rather than overwrite.

Obviously if the are globally unique, regardless of attribute, that also avoids clashes.

[cwJn]

  On 1/18/2023 at 9:20 PM, warjort said:

https://minecraft.fandom.com/wiki/Attribute

As it says, UUIDs must be unique per attribute if you want the modifiers to stack rather than overwrite.

Obviously if the are globally unique, regardless of attribute, that also avoids clashes.

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This makes sense. I'm just confused as to why they use separate UUIDs for attack damage and attack speed. Shouldn't it work as intended if they use the same UUID, since attack damage and attack speed are different stats?