Paper/patches/server/0621-Preserve-overstacked-loot.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: lexikiq <noellekiq@gmail.com>
Date: Mon, 21 Jun 2021 23:21:58 -0400
Subject: [PATCH] Preserve overstacked loot

Preserves overstacked items in loot tables, such as shulker box drops, to prevent the items
from being deleted (as they'd overflow past the bounds of the container)-- or worse, causing
chunk bans via the large amount of NBT created by unstacking the items.

Fixes GH-5140 and GH-4748.

diff --git a/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java b/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
index b231f90317fe7df9133674b12d47873520b481cb..edaf7f1692ae059581f3abc24bb228874e6d114b 100644
--- a/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
+++ b/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
@@ -72,9 +72,10 @@ public class LootTable {
     }
 
     public static Consumer<ItemStack> createStackSplitter(ServerLevel world, Consumer<ItemStack> consumer) {
+        boolean skipSplitter = world != null && !world.paperConfig().fixes.splitOverstackedLoot; // Paper - preserve overstacked items
         return (itemstack) -> {
             if (itemstack.isItemEnabled(world.enabledFeatures())) {
-                if (itemstack.getCount() < itemstack.getMaxStackSize()) {
+                if (skipSplitter || itemstack.getCount() < itemstack.getMaxStackSize()) { // Paper - preserve overstacked items
                     consumer.accept(itemstack);
                 } else {
                     int i = itemstack.getCount();