From 55f03a2d86fec8f44722ee3d2d5f2d60cb93c5e6 Mon Sep 17 00:00:00 2001
From: LexManos <LexManos@gmail.com>
Date: Fri, 16 Oct 2026 13:40:27 -0700
Subject: [PATCH] Fix incorrect filter when placing items on bundles. Closes
 #10902

---
 .../minecraft/net/minecraft/world/item/BundleItem.java.patch    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/patches/minecraft/net/minecraft/world/item/BundleItem.java.patch b/patches/minecraft/net/minecraft/world/item/BundleItem.java.patch
index b9b3690e00..c00be284d2 100644
--- a/patches/minecraft/net/minecraft/world/item/BundleItem.java.patch
+++ b/patches/minecraft/net/minecraft/world/item/BundleItem.java.patch
@@ -4,7 +4,7 @@
      public boolean overrideOtherStackedOnMe(
          final ItemStack self, final ItemStack other, final Slot slot, final ClickAction clickAction, final Player player, final SlotAccess carriedItem
      ) {
-+        if (other.getCount() != 1) return false;
++        if (self.getCount() != 1) return false; // Forge: prevent insertions when we're stacked, which would cause duplication when unstacked+
          if (clickAction == ClickAction.PRIMARY && other.isEmpty()) {
              toggleSelectedItem(self, -1);
              return false;