fix: crash if lua mod requests unreg hook that is also hooked by another

Author: narknon

UE4SS/src/Mod/LuaMod.cpp

@@ -122,10 +122,12 @@ namespace RC
 
     static auto lua_unreal_script_function_hook_pre(Unreal::UnrealScriptFunctionCallableContext context, void* custom_data) -> void
     {
-
         // Fetch the data corresponding to this UFunction
         auto& lua_data = *static_cast<LuaUnrealScriptFunctionData*>(custom_data);
 
+        // Check if this hook has been scheduled for removal (Lua state may be invalid)
+        if (lua_data.scheduled_for_removal) return;
+
         // This is a promise that we're in the game thread, used by other functions to ensure that we don't execute when unsafe
         set_is_in_game_thread(lua_data.lua, true);
 
@@ -239,6 +241,9 @@ namespace RC
         // Fetch the data corresponding to this UFunction
         auto& lua_data = *static_cast<LuaUnrealScriptFunctionData*>(custom_data);
 
+        // Check if this hook has been scheduled for removal (Lua state may be invalid)
+        if (lua_data.scheduled_for_removal) return;
+
         // This is a promise that we're in the game thread, used by other functions to ensure that we don't execute when unsafe
         set_is_in_game_thread(lua_data.lua, true);