Aptdaemon crash during software update

[Marius B. Kotsbak]

Update manager reports:

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 249, in _process_transaction
    self.commit_packages(trans, *trans.packages)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 311, in commit_packages
    self._apply_changes(trans)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/pkcompat.py", line 2831, in _apply_changes
    for entry_point in pkg_resources.iter_entry_points(
  File "/usr/lib/python2.7/dist-packages/aptdaemon/pkcompat.py", line 2157, in _emit_require_restart
    label = candidate_origin.label
AttributeError: 'Transaction' object has no attribute 'pktrans'

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: aptdaemon 0.43+bzr784-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
Date: Tue Mar 20 16:51:39 2012
DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
EcryptfsInUse: Yes
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=nb_NO:nb:no_NO:no:nn_NO:nn:en
 TERM=xterm
 PATH=(custom, user)
 LANG=nb_NO.UTF-8
 SHELL=/bin/bash
SourcePackage: aptdaemon
UpgradeStatus: Upgraded to precise on 2012-03-11 (9 days ago)

[Marius B. Kotsbak (mariusko)]

Frontend bug #950791. Maybe related to bug #891255.