ubiquity crashed with TypeError in partman_popup(): popup() takes exactly 7 arguments (6 given)

Besides the detection of the raid is wrong. Gparted does well. Ubiquity partitions repeated 3 times.

TEST CASE:
1. On a system with existing partitions, run ubiquity from a Live CD
2. Proceed to ubi-partman and select "Something Else" (manual partitioning)
3. Right-click on an item of the list of partitions

ACTUAL RESULT:
Traceback (most recent call last):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1000, in on_partition_list_treeview_button_press_event
    self.partman_popup(widget, event)
  File "/usr/lib/ubiquity/ubiquity/plugin.py", line 44, in wrapper
    return target(self, *args, **kwargs)
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 734, in partman_popup
    partition_list_menu.popup(None, None, None, button, time)
TypeError: popup() takes exactly 7 arguments (6 given)

EXPECTED RESULT:
A contextual menu pops-up

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.9.19
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CasperVersion: 1.304
Date: Sun Feb 19 11:15:50 2012
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.7
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120219)
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permiso denegado: '/proc/4266/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with TypeError in partman_popup(): popup() takes exactly 7 arguments (6 given)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: