About
Attribute modifiers for items come in two flavors: NBT and hard-coded. NBT modifiers can be applied through an AttributeModifiers key on-the-fly, while hard-coded modifiers are static for an Item instance.
By default, these modifiers don't mix - the NBT modifiers override the others. For example, a diamond sword with generic.attack_damage +5 would only have that five attack damage and lose the base modifier.
This mod fixes this small issue. It's not really a "bug," more of a bad feature.
License
MIT © 2022 spadeteam