Unable to set accels on appmenu actions with targets
Attempts to do so are met with
(MWE.py:31657): GLib-GIO-CRITICAL **: g_action_print_detailed_name: assertion 'g_action_name_is_valid (action_name)' failed
(MWE.py:31657): Gtk-CRITICAL **: gtk_application_set_accels_for_action: assertion 'detailed_action_name != NULL' failed
I've tested on multiple versions of PyGObject (MSYS2, Fedora 26 and current Arch) and gotten the same results. See attached for a minimum working example (adapted from the tutorial).