[BUG] casue double loot when loot is added by lootjs

[QLNPLUS]

MOD
AutoLeveling-1.20-1.19b.jar
lootjs-forge-1.20.1-2.13.0.jar

Forge 47.4.0 minecraft 1.20.1

LootJS.modifiers((event) => {
event
.addEntityLootModifier("minecraft:creeper")
.addLoot("minecraft:stone");

});

add loot like this, and kill a creeper will give two stone