python error when attaching logs in utf8

[Fabien Tassin]

apport 1.94-0ubuntu2 from precise.

Traceback (most recent call last):
  File "/usr/bin/apport-cli", line 364, in <module>
    if not app.run_argv():
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 553, in run_argv
    self.run_crash(self.options.crash_file, False)
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 222, in run_crash
    response = self.ui_present_report_details(allowed_to_report)
  File "/usr/bin/apport-cli", line 205, in ui_present_report_details
    self.ui_update_view()
  File "/usr/bin/apport-cli", line 154, in ui_update_view
    report = self._get_details()
  File "/usr/bin/apport-cli", line 140, in _get_details
    details += self.report[key]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 140214: ordinal not in range(128)

key = 'XsessionErrors'

Mine has logs in utf8, like:

folks-WARNING **: Error preparing persona store 'eds:1270134350.1629.1@foo': Couldn't open address book ‘1270134350.1629.1@foo’: The name org.gnome.evolution.dataserver.AddressBook1 was not provided by any .service files