meta: factory getter, better is_invocable_v test

src/entt/meta/factory.hpp

@@ -133,7 +133,7 @@ template<typename Type, auto Data, typename Policy>
     };
 
     if constexpr(std::is_function_v<std::remove_reference_t<std::remove_pointer_t<decltype(Data)>>> || std::is_member_function_pointer_v<decltype(Data)>) {
-        auto * const clazz = instance->try_cast<std::conditional_t<std::is_invocable_v<decltype(Data), const Type *>, const Type, Type>>();
+        auto * const clazz = instance->try_cast<std::conditional_t<std::is_invocable_v<decltype(Data), const Type &>, const Type, Type>>();
         return clazz ? dispatch(std::invoke(Data, *clazz)) : meta_any{};
     } else if constexpr(std::is_member_object_pointer_v<decltype(Data)>) {
         if constexpr(std::is_array_v<std::remove_cv_t<std::remove_reference_t<decltype(std::declval<Type>().*Data)>>>) {