From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: hyper1423 <backup8822@gmail.com>
Date: Sun, 3 Dec 2023 07:38:09 +0900
Subject: [PATCH] Fix CraftMetaItem#getAttributeModifier duplication check


diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
index 8762a7a22723150a1a42b3459f3744b8235da142..ed87722957a0bd5f6348b91ac2ea9bb5ceb6d853 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
@@ -1176,7 +1176,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
         Preconditions.checkNotNull(modifier, "AttributeModifier cannot be null");
         this.checkAttributeList();
         for (Map.Entry<Attribute, AttributeModifier> entry : this.attributeModifiers.entries()) {
-            Preconditions.checkArgument(!entry.getValue().getUniqueId().equals(modifier.getUniqueId()), "Cannot register AttributeModifier. Modifier is already applied! %s", modifier);
+            Preconditions.checkArgument(!(entry.getValue().getUniqueId().equals(modifier.getUniqueId()) && entry.getKey() == attribute), "Cannot register AttributeModifier. Modifier is already applied! %s", modifier); // Paper
         }
         return this.attributeModifiers.put(attribute, modifier);
     }