[orca-list] Ctrl+Alt+Del in Fedora 24/Gnome 3.20

[Nick Wood <nick microlitesoftware co uk>]

Hi all,

In Fedora 22/23, with Gnome 3.16/3.18, pressing Ctrl+Alt+Del would bring 
up a screen with either Restart or Power Off buttons.

I've just upgraded to Fedora 24 with Gnome 3.20, and now pressing 
Ctrl+Alt+Del just seems to power off the system after 60 seconds.

The window appears, but Orca can't seem to navigate around it. If I use 
flat review I can read the count down timer, but no keyboard input seems 
to work, and there seems to be no way to cancel the window.

Are there any other Fedora users out there who could confirm what 
behaviour they are seeing?

Thanks,

Nick