spigot/CraftBukkit-Patches/0051-Better-item-validation.patch

From 8f35248e4a10a12aac9ef0870d6773179e7e51e7 Mon Sep 17 00:00:00 2001
From: Thinkofdeath <thinkofdeath@spigotmc.org>
Date: Wed, 2 Jul 2014 23:35:51 +0100
Subject: [PATCH] Better item validation


diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index 2a7539aa51..cd66f29e06 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -183,6 +183,10 @@ public final class ItemStack implements DataComponentHolder {
                 registryfriendlybytebuf.writeVarInt(0);
             } else {
                 registryfriendlybytebuf.writeVarInt(itemstack.getCount());
+                // Spigot start - filter
+                itemstack = itemstack.copy();
+                CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack));
+                // Spigot end
                 ITEM_STREAM_CODEC.encode(registryfriendlybytebuf, itemstack.getItemHolder()); // CraftBukkit - decompile error
                 DataComponentPatch.STREAM_CODEC.encode(registryfriendlybytebuf, itemstack.components.asPatch());
             }
-- 
2.45.2