bzr crashed with MalformedTransform in resolve_conflicts(): Tree transform is malformed [('versioning no contents', 'new-32')]

[Daniel Holbach]

bzr branch lp:ubuntu/pdfshuffler
cd pdfshuffler/
bzr merge lp:~matttbe/ubuntu/precise/pdfshuffler/0.5.99-svn75

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: bzr 2.5.0-2ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
Uname: Linux 3.2.0-21-generic x86_64
ApportVersion: 2.0-0ubuntu2
Architecture: amd64
BzrDebugFlags: set()
BzrVersion: 2.5.0
CheckboxSubmission: 2f383a1679e8525d7196eb2518a1921f
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
CommandLine:
 ['/usr/bin/bzr',
  'merge',
  'lp:~matttbe/ubuntu/precise/pdfshuffler/0.5.99-svn75']
CrashDb: bzr
Date: Mon Apr 2 17:42:53 2012
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110817)
InterpreterPath: /usr/bin/python2.7
Locale: de_DE.UTF-8
PackageArchitecture: all
Platform: Linux-3.2.0-21-generic-x86_64-with-Ubuntu-12.04-precise
ProcCmdline: /usr/bin/python /usr/bin/bzr merge lp:~matttbe/ubuntu/precise/pdfshuffler/0.5.99-svn75
PythonVersion: 2.7.3rc2
SourcePackage: bzr
Title: bzr crashed with MalformedTransform in resolve_conflicts(): Tree transform is malformed [('versioning no contents', 'new-32')]
UpgradeStatus: Upgraded to precise on 2011-12-02 (122 days ago)
UserEncoding: utf-8
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare

[Launchpad Janitor (janitor)]

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

[Logan Rosen (logan)]

Just got this crash as well after doing the following:
bzr branch ubuntu:pcalendar
cd pcalendar
bzr merge debianlp:pcalendar