Click not on a button made reboot popup disappear

[lucamosca1]

In restart or shutdown popup any click made in a location different that buttons (reboot/cancel) made the pop up disappear, it desn't matter if the click happens in or out the popup area. In this case it will be better that the click action doesn't made the pop up disappear, otherwise an error will force the user to repeat the procedure for reboot/shutdown the system