From bb14db9d911e29aa36b6fc5c848d7c209491fe77 Mon Sep 17 00:00:00 2001
From: ccuser44 <68124053+ccuser44@users.noreply.github.com>
Date: Thu, 2 Jan 2025 15:25:09 +0200
Subject: [PATCH] Only assign metatable to clone if `__metatable` is undefined

---
 VM/src/ltable.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/VM/src/ltable.cpp b/VM/src/ltable.cpp
index dafb2b3f..635212f6 100644
--- a/VM/src/ltable.cpp
+++ b/VM/src/ltable.cpp
@@ -797,7 +797,6 @@ Table* luaH_clone(lua_State* L, Table* tt)
 {
     Table* t = luaM_newgco(L, Table, sizeof(Table), L->activememcat);
     luaC_init(L, t, LUA_TTABLE);
-    t->metatable = tt->metatable;
     t->tmcache = tt->tmcache;
     t->array = NULL;
     t->sizearray = 0;
@@ -808,6 +807,9 @@ Table* luaH_clone(lua_State* L, Table* tt)
     t->node = cast_to(LuaNode*, dummynode);
     t->lastfree = 0;
 
+    if (!luaL_getmetafield(L, 1, "__metatable"))
+        t->metatable = tt->metatable;
+
     if (tt->sizearray)
     {
         t->array = luaM_newarray(L, tt->sizearray, TValue, t->memcat);