ubiquity crashed with TypeError in get_current_disk_partman_id(): decoding Unicode is not supported

[streetpunk234]

Trying to install 18-12-'11 daily build

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.9.8 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.2.0-5.11-generic-pae 3.2.0-rc5
Uname: Linux 3.2.0-5-generic-pae i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
CasperVersion: 1.296
CrashCounter: 1
Date: Sun Dec 18 10:42:36 2011
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.7
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111218)
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/5168/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with TypeError in get_current_disk_partman_id(): decoding Unicode is not supported
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Launchpad Janitor (janitor)]

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

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubiquity - 2.9.9

---------------
ubiquity (2.9.9) precise; urgency=low

  * Cope with pygobject returning unicode objects rather than UTF-8-encoded
    str objects (LP: #905916, #906015).
 -- Colin Watson <email address hidden> Mon, 19 Dec 2011 12:25:13 +0000