Markus Koschany - 2013-03-12

Confirmed. It seems this is the same issue someone else reported at Debian's bug tracker.

http://bugs.debian.org/607660

Create two tasks, select the second task (it is highlighted now) and then try to mark the
first task as "done" but the second highlighted one will be marked as done.
Thats unexpected and also happens with more than two tasks.