UnicodeDecodeError: 'utf8' codec can't decode bytes in position 11-16: unsupported Unicode code range

[pepa@…]

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/trac/wiki/web_ui.py", line 97, in process_request
    page = WikiPage(self.env, pagename, version, db)
  File "/usr/lib/python2.4/site-packages/trac/wiki/model.py", line 32, in __init__
    self._fetch(name, version, db)
  File "/usr/lib/python2.4/site-packages/trac/wiki/model.py", line 53, in _fetch
    (name,))
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/MySQLdb/cursors.py", line 137, in execute
    self.errorhandler(self, exc, value)
  File "/usr/lib/python2.4/site-packages/MySQLdb/connections.py", line 33, in defaulterrorhandler
    raise errorclass, errorvalue
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 138-140: invalid data

[Emmanuel Blot]

Duplicate of #3723