Unable to add contacts to a group due to disabled edit menu

I'm no longer able to edit the groups a contact is in, as the right click on contact -> edit menu is disabled, and there doesn't appear to be another way to assign contacts to groups.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: empathy 3.12.1-0ubuntu1~trusty1 [origin: LP-PPA-gnome3-team-gnome3-staging]
ProcVersionSignature: Ubuntu 3.13.0-32.56-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Jul 16 12:02:55 2014
InstallationDate: Installed on 2014-02-24 (142 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140218)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: empathy
UpgradeStatus: No upgrade log present (probably fresh install)