This patch adds entries with completions to the city and region
comboboxes
on the Datetime spoke so that the timezone can be easily chosen by using
keyboard. The preview can be seen at [1], but due to the bug #907946 I cannot
record a new preview because the completion doesn't show on our images.
Thanks for filing this bug. I've noticed this before but not done
anything about it.
The patch looks fine, too.
- Chris