Portal only works if cosmic-idle is running before xdg-desktop-portal-gtk

[ids1024]

xdg-desktop-portal-gtk implements the Inhibit portal on top of the FreeDesktop screensaver dbus protocol (which is provided here).

This works, but if cosmic-idle is started after xdg-desktop-portal-gtk, when it tries to call Idle it just errors with Cannot invoke method; proxy is for the well-known name org.freedesktop.ScreenSaver without an owner".

Doesn't seem to be anything cosmic-idle could do about this. Though xdg-desktop-portal-cosmic could provide its own Inhibit portal backend.

(I guess xdg-desktop-portal-gtk should be using g_bus_watch_name and re-create the proxy?)