bzr crashed with UnicodeDecodeError in _escape_cdata(): 'ascii' codec can't decode byte 0xc5 in position 11: ordinal not in range(128)

I was committing a packaging change, and thanks to bzr commit now behaving like debcommit I couldn't edit the commit message which resulted in my correctly written name being in the changelog. Bzr doesn't seem to like the 'š' in the name though, so I had to use -m and write the whole changelog again.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: bzr 2.4.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
BzrDebugFlags: set()
BzrVersion: 2.4.1
CommandLine: ['/usr/bin/bzr', 'ci']
CrashDb: bzr
Date: Tue Oct 4 21:14:08 2011
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
InterpreterPath: /usr/bin/python2.7
Locale: en_US.UTF-8
PackageArchitecture: all
Platform: Linux-3.0.0-12-generic-x86_64-with-Ubuntu-11.10-oneiric
ProcCmdline: /usr/bin/python /usr/bin/bzr ci
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US.UTF-8
PythonVersion: 2.7.2
SourcePackage: bzr
Title: bzr crashed with UnicodeDecodeError in _escape_cdata(): 'ascii' codec can't decode byte 0xc5 in position 11: ordinal not in range(128)
UpgradeStatus: No upgrade log present (probably fresh install)
UserEncoding: UTF-8
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare