The "recently used" function for date formats doesn't work

[Nicklas Nordborg]

1. As a new user login to BASE and go to BASE -> Preferences
2. Select the predefined date-time format: yyyy-MM-dd HH:mm:ss
3. Save
4. Open the BASE -> Preferences dialog again.
5. The 'presets' list now contains a three 'recently used' entries:
   • yyyy-MM-dd HH
   • mm
   • ss

I think this happens because the recently-used function saves entries as a single string with values separated with ':'.