Screensaver idle time setting doesn't save unless entered with +/- buttons
Using xfce4-settings-manager 4.16.2 (Xfce 4.16) Open the Screensaver settings dialog, and type a number in for "Activate screensaver when computer is idle / Regard the computer as idle after:". Press enter, remove focus, and/or click "Close". The setting will not save.
Use the +/- buttons, the setting saves.
Expected behavior: Either print the number on the panel instead of in an editable text field to indicate that the buttons are the only input method, or save (valid) entry regardless of input method.
