Chromium People menu does not work with the HUD

I have two Chromium users. Their names appear on the HUD when I type the first letters, but hitting enter has no effect. The two other commands on the "People" menu (Edit... and Add person...) are also ineffective via the HUD. I have to use the mouse to execute these commands. I have tested many other commands from the other menus (File, Edit, View, History, Tools and Help) and they work. It seems the problem is exclusive to the People menu.

This is an Ubuntu 14.10 desktop. It was upgraded from 14.04. The bug also manifests on my Ubuntu 14.10 notebook, which also was upgraded from 14.04.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: chromium-browser 39.0.2171.65-0ubuntu0.14.10.1.1106
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jan 29 08:02:03 2015
SourcePackage: chromium-browser
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.chromium.browser: [deleted]