From e01af22bacb14580bb7fa494fc3ee3f2b043f5a1 Mon Sep 17 00:00:00 2001
From: Alex Orlenko <zxteam@protonmail.com>
Date: Sun, 9 Oct 2022 13:56:30 +0100
Subject: [PATCH] Update push_userdata_ref

---
 src/lua.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lua.rs b/src/lua.rs
index fc631d9..e7bfe42 100644
--- a/src/lua.rs
+++ b/src/lua.rs
@@ -2591,6 +2591,7 @@ impl Lua {
     pub(crate) unsafe fn push_userdata_ref(&self, lref: &LuaRef) -> Result<Option<TypeId>> {
         self.push_ref(lref);
         if ffi::lua_getmetatable(self.state, -1) == 0 {
+            ffi::lua_pop(self.state, 1);
             return Err(Error::UserDataTypeMismatch);
         }
         let mt_ptr = ffi::lua_topointer(self.state, -1);