Comment 3 for bug 561503

Looks like some sort of event-handling bug to me. It's happening as reported to me too (r9152, Ubuntu 9.10, English). I worked out the workaround too, and also discovered the other spinbox actions work too, using the arrow keys updates it too, so now I just press the Up then the Down arrows and it updates.

It's a minor annoyance but I think it's probably just a single line of missing or incorrect code.