Nicolas Goaziou writes:
> I disagree. You may want to cancel the message because this change
> doesn't require one, but, yet, want the todo state change.
I see, that makes sense.
I notice that supplying an empty message with C-c C-k results in no
logbook entry at all. Is that intended behaviour
Remember to cover the basics, that is, what you expected to happen and
what in fact did happen. You don't know how to make a good report? See
http://orgmode.org/manual/Feedback.html#Feedback
Your bug report will be posted to the Org mailing list.