The menu_run() function allows the user to set/unset default entry, or to increase/decrease menu timeout. After a keypress, status like "Menu timeout set to 5 s" is printed, but there actually isn't any immediate effect. The value is only written right right before booting a menu entry to avoid unnecessary wear&tear on the nvram storage. This delayed write is supposed to be invisible to the user. Nevertheless, operations like reboot into firmware, reboot, or shutdown were done immediately. We need to exit the loop first, save the state, and only do the op afterwards. Fixup forf6531b11d2ande6cab77eca. Also reverts498d0cc426.
System and Service Manager
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