std::string cast error on property change

    Test {
        onValChanged: console.log(val)
    }

"C:\Users\arkce\Desktop\Repos\temp\build-TestProp-Qt_for_MCUs_1_9_RH850_D1M1A_BAREMETAL_32bpp_GHS-Debug\CMakeFiles\TestProp.dir\TestProp.cpp", line 50: error #289:
          no instance of constructor "Qul::Private::ChangedEvent<Functor,
          Type>::ChangedEvent [with
          Functor=TestProp::test_onValChanged_bindingFunctor,
          Type=Qul::Private::String]" matches the argument list
            argument types are: (TestProp::test_onValChanged_bindingFunctor,
                      Qul::Property<std::string> *)
      , test_onValChanged_binding(test_onValChanged_bindingFunctor(this), &test.val)

    Test {
        property string valFake: val
        onValFakeChanged: console.log(val)
    }