When editing a Contact Group and opening the Actions flap, there is a section labelled "Contact" which is empty. I would have either expected some content or a "Contact Group" section. Observed in version 4:4.5~20100922.1178352-1maemo1.1177763 .
SVN commit 1185525 by vkrause: hide still empty (and thus confusing) submenu BUG: 252139 M +2 -2 KAddressBookActions.qml WebSVN link: http://websvn.kde.org/?view=rev&revision=1185525
Confirmed, version 4:4.5~20101014.1185761-1maemo1.1185672 .