bzr viz does not show commits log properly

[Vadim Peretokin]

See video - with 2-3 commits, the commits log is not shown at all. With more, you only see the last commits but can never scroll to the top.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: bzr 2.5.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Mon Jul 16 16:45:38 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_AU:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: bzr
UpgradeStatus: Upgraded to precise on 2012-04-26 (80 days ago)