Merge Paper #11945 for temporary hooper behavior fix

A hopper optimization fix on Paper's pr : https://github.com/PaperMC/Paper/pull/11945

patches/server/0027-Merge-Paper-11945-for-temporary-hooper-behavior-fix.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: MrHua269 <wangxyper@163.com>
+Date: Sat, 11 Jan 2025 18:41:11 +0800
+Subject: [PATCH] Merge Paper #11945 for temporary hooper behavior fix
+
+A hopper optimization fix on Paper's pr : https://github.com/PaperMC/Paper/pull/11945
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+index 44aae845da6cd34fc00e0c71795d6f610679bd4b..f0c2dae36d944f769082904301bcba91f2d0895f 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+@@ -764,8 +764,7 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+             } else if (HopperBlockEntity.canMergeItems(itemstack1, stack)) {
+                 int j = Math.min(stack.getMaxStackSize(), to.getMaxStackSize()) - itemstack1.getCount(); // Paper - Make hoppers respect inventory max stack size
+                 int k = Math.min(stack.getCount(), j);
+-
+-                stack.shrink(k);
++                stack.copy(true).shrink(k);  // Paper - Perf: Optimize Hoppers
+                 itemstack1.grow(k);
+                 flag = k > 0;
+             }