I configured a custom hotkey in the system settings under 

Shortcuts -> Custom Shortcuts

and created a command/URL shortcut "Meta+E" for the command "eject -t". This did work, but I recognized that I have chosen the wrong parameter and wanted to change the command to "eject -T".

I modified the entry and did press the Apply button. But the hotkey behaviour did not change. Clicking on another setting page (e.g. Web Shortcuts) and back to Custom Shortcuts again did display the old "eject -t" setting. So the "eject -T" was not stored by the Apply-Button.

Reproducible: Always

Steps to Reproduce:
1. Create a custom shortcut with the command "eject -t"
2. Close the system settings and open them again.
3. Change the shortcut to "eject -T"
4. press "Apply"
5. Close the system settings and open them again.
6. Check what the shortcut command looks like

Actual Results:  
The shortcout still is "eject -t"

Expected Results:  
The shortcout shoudl be "eject -T"