From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <mrhua269@gmail.com>
Date: Fri, 17 Apr 2026 23:16:45 +0800
Subject: [PATCH] Fix off region leashing

PS: My friend reported me this bug and I still need to check the details of how the bug was caused

XD

diff --git a/net/minecraft/world/entity/Leashable.java b/net/minecraft/world/entity/Leashable.java
index 98034a4c96bf2972316078d3b3a49140921aab50..284ba0c3742d5d5ab0b344a84a9c8e2c2a98a74a 100644
--- a/net/minecraft/world/entity/Leashable.java
+++ b/net/minecraft/world/entity/Leashable.java
@@ -95,10 +95,24 @@ public interface Leashable {
             if (leashUuid.isPresent()) {
                 Entity leasher = serverLevel.getEntity(leashUuid.get());
                 if (leasher != null) {
+                    // Luminol start - Fix off region leashing
+                    if (!ca.spottedleaf.moonrise.common.util.TickThread.isTickThreadFor(leasher)) {
+                        entity.spawnAtLocation(serverLevel, Items.LEAD);
+                        entity.setLeashData(null);
+                        return;
+                    }
+                    // Luminol end
                     setLeashedTo(entity, leasher, true);
                     return;
                 }
             } else if (pos.isPresent()) {
+                // Luminol start - Fix off region leashing
+                if (!ca.spottedleaf.moonrise.common.util.TickThread.isTickThreadFor(serverLevel, pos.get())) {
+                    entity.spawnAtLocation(serverLevel, Items.LEAD);
+                    entity.setLeashData(null);
+                    return;
+                }
+                // Luminol end
                 setLeashedTo(entity, LeashFenceKnotEntity.getOrCreateKnot(serverLevel, pos.get()), true);
                 return;
             }