Ubiquity does not display 'Installation type' screen when there are two hard disks

[Carla Sella]

On a VirtualBox virtual machine with two hard disks, one containing a Windows 7 installation and the other only a empty ext4 partition, ubiquity does not display the 'Installation type' screen, aftern having clicked on the "Preparing to install Ubuntu"'s continue button ubiquity get's stuck there and does not carry on.
I used Raring ISO: http://cdimage.ubuntu.com/daily-live/20121125/raring-desktop-amd64.iso.
If you use this same ISO on a VirtualBox virtual machine with only one hard drive the problem does not occur.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubiquity 2.13.3 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.7.0-3.9-generic 3.7.0-rc6
Uname: Linux 3.7.0-3-generic x86_64
ApportVersion: 2.6.2-0ubuntu5
Architecture: amd64
CasperVersion: 1.329
Date: Sun Nov 25 15:08:52 2012
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121125)
MarkForUpload: True
ProcEnviron:
 TERM=linux
 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 QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1082909

[Launchpad Janitor (janitor)]

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

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]