Gio::Action lookup crash

[Yann LEYDIER <yann leydier info>]

Hi,

I have this simple program :

#include <gtkmm.h>
#include <iostream>

class App: public Gtk::ApplicationWindow
{
        public:
                App()
                {
                        add_action("int");
                        auto la = lookup_action("int");
                        std::cout << bool(la) << std::endl;
                }
};

int main(int argc, char *argv[])
{
        auto app = Gtk::Application::create(argc, argv, "test.gtk");
        App win;
        return app->run(win);
}

The expected output is "1", but instead I get twice this message: 
"GLib-Object-CRITICAL **: g_object_get_qdata: assertion 'G_IS_OBJECT 
(object)' failed" and then the application crashes.


If I add the action to a Gio::SimpleActionGroup instead, it works.

I tested with Gtkmm 3.10 on Linux and 3.18 on Windows.

What am I doing wrong?

Thanks,
yann