Comment 16 for bug 841409

Ok, this bug seems to disappear when a proper calendar application is installed (e.g. Maya in my case) (see the attached screenie).
Also, this is a bug is not a gedit one (captain obvious), cuz gedit's category are:
and no:
It's most likely caused by the fact that there is no out of the box calendar app which makes me think - is there really a need for Calendar application in Default Applications dialog?