bzr crashed with AssertionError in lookup_file_id()

[Olivier Tilloy]

Binary package hint: bzr-git

I was trying to revert uncommitted changes in a git branch using `bzr revert`, and bzr crashed with an AssertionError.
The branch is a clone of git://gitorious.org/qt/qt.git at revision 8c6f2fdf09eb2998cb013659ca7a2154792ffa98.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: bzr 2.3.1-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia wl
Architecture: amd64
BzrDebugFlags: set()
BzrVersion: 2.3.1
CommandLine: ['/usr/bin/bzr', 'revert']
CrashDb: bzr
Date: Thu Jun 9 18:00:13 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64+mac (20110427.1)
InterpreterPath: /usr/bin/python2.7
Locale: fr_FR.UTF-8
PackageArchitecture: all
Platform: Linux-2.6.38-8-generic-x86_64-with-Ubuntu-11.04-natty
ProcCmdline: /usr/bin/python /usr/bin/bzr revert
ProcEnviron:
 SHELL=/bin/bash
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR:en
PythonVersion: 2.7.1
SourcePackage: bzr
Title: bzr crashed with AssertionError in lookup_file_id()
UpgradeStatus: No upgrade log present (probably fresh install)
UserEncoding: UTF-8
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare