patches/server/0964-Fix-CraftMetaItem-getAttributeModifier-duplication-c.patch


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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 9137d6d56386111dfd072859df84e533580ee294..5cd0fbac267f9c69c5de4c200a95860f5c56d42e 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
@@ -1174,7 +1174,7 @@ 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);
     }