UnicodeDecodeError in apt_pkg.size_to_str

[Tiitise]

Installer crash bug :)

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubiquity 2.13.18
ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
Uname: Linux 3.8.0-15-generic i686
ApportVersion: 2.9.2-0ubuntu5
Architecture: i386
CasperVersion: 1.330
Date: Sun Mar 31 14:18:56 2013
LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130328)
MarkForUpload: True
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Mar 31 11:18:49 ubuntu /plugininstall.py: Traceback (most recent call last):
Mar 31 11:18:49 ubuntu /plugininstall.py: File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 277, in pulse
Mar 31 11:18:49 ubuntu /plugininstall.py: AcquireProgress.pulse(self, owner)
Mar 31 11:18:49 ubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/progress/text.py", line 187, in pulse
Mar 31 11:18:49 ubuntu /plugininstall.py: val += ' %sB' % apt_pkg.size_to_str(worker.current_size)
Mar 31 11:18:49 ubuntu /plugininstall.py: UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa0 in position 1: invalid start byte
Mar 31 11:18:49 ubuntu /plugininstall.py:

[Launchpad Janitor (janitor)]

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