apport crash in attach_xorg_package_versions

[mokabar]

Binary package hint: apport

running apport-collect -p xorg 748113 gives me:

ERROR: hook /usr/share/apport/package-hooks//source_xorg.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 656, in add_hooks_info
    symb['add_info'](self, ui)
  File "/usr/share/apport/package-hooks//source_xorg.py", line 446, in add_info
    attach_xorg_package_versions(report, ui)
  File "/usr/share/apport/package-hooks//source_xorg.py", line 293, in attach_xorg_package_versions
    report['version.%s' %(package)] = package_versions(package)
  File "/usr/lib/python2.7/dist-packages/problem_report.py", line 504, in __setitem__
    assert k.replace('.', '').replace('-', '').replace('_', '').isalnum()
AssertionError

[Philip Muškovac (yofel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 747725, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.