update-manager crashed with Package isn't installed in _show_transaction()

[shankao]

1. Started update-manager (thunderbird was there)
2. Removed thunderbird manually
3. Clicked on install updates in update-manager
4. update-manager errs

Expected: update-manager should continue updating the rest of the packages instead of stopping after one of them doesn't exist anymore

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: update-manager 1:14.10.5
ProcVersionSignature: Ubuntu 3.16.0-17.23-generic 3.16.3
Uname: Linux 3.16.0-17-generic x86_64
ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Sep 27 19:44:15 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'744'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'1311'
 b'com.ubuntu.update-manager' b'launch-time' b'1411818269'
InstallationDate: Installed on 2012-11-25 (671 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120627)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=en_SG:en
 XDG_RUNTIME_DIR=<set>
 LANG=en_SG.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with Package thunderbird isn't installed in _show_transaction()
UpgradeStatus: Upgraded to utopic on 2014-08-13 (45 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.