Menubar items don't appear under Unity in Saucy

When running under Unity in Saucy, no menu bar items appear. File, Edit, View, etc. all appear, but no menu items appear when they're clicked. When running exaile under Gnome or xfce, the menu items appear fine.

Debugging confirmed that the 'show' event is never being received for MenuItems when the program is running under Unity, so Menu.regenerate_menu is never being called.

I think the problem is related to this bug that I've filed: https://bugs.launchpad.net/ubuntu/+source/unity-gtk-module/+bug/1245330

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: exaile 3.3.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Mon Oct 28 15:58:00 2013
InstallationDate: Installed on 2010-10-12 (1111 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release Candidate amd64 (20100928)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: exaile
UpgradeStatus: Upgraded to saucy on 2013-10-18 (10 days ago)
modified.conffile..etc.xdg.exaile.settings.ini:
 [plugins]
 enabled = L: ['shoutcast', 'lastfmcovers', 'lyricsfly', 'cd', 'replaygain', 'equalizer', 'lyricsviewer', 'lastfmdynamic', 'osd']
mtime.conffile..etc.xdg.exaile.settings.ini: 2013-10-28T12:28:15.155148