How to Reproduce

While doing a GET operation on /query, Trac issued an internal error.

''This happens, whenever I try to generate a custom query. No matter whether I'm logged in or not.''

Request parameters:

{'status': [u'new', u'assigned', u'reopened', u'closed'], 'component': u'ui', 'order': u'priority'}

System Information

|| Trac || 0.11dev-r5354 ||

|| Python || 2.3.4 (#1, Oct 11 2006, 06:18:43) [GCC 3.4.6 20060404 (Red Hat 3.4.6-3)] ||

|| setuptools || 0.6c5 ||

|| MySQL || server: "5.0.27-log", client: "5.0.27", thread-safe: 0 ||

|| MySQLdb || 1.2.2 ||

|| Genshi || 0.4 ||

|| Subversion || 1.4.3 (r23084) ||

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/Trac-0.11dev_r5354-py2.3.egg/trac/web/main.py", line 429, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.3/site-packages/Trac-0.11dev_r5354-py2.3.egg/trac/web/main.py", line 234, in dispatch
    req.session.save()
  File "/usr/lib/python2.3/site-packages/Trac-0.11dev_r5354-py2.3.egg/trac/web/session.py", line 175, in save
    (self.sid, self.last_visit, authenticated))
  File "/usr/lib/python2.3/site-packages/Trac-0.11dev_r5354-py2.3.egg/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.3/site-packages/Trac-0.11dev_r5354-py2.3.egg/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "build/bdist.linux-i686/egg/MySQLdb/cursors.py", line 166, in execute
  File "build/bdist.linux-i686/egg/MySQLdb/connections.py", line 35, in defaulterrorhandler
IntegrityError: (1062, "Duplicate entry '87bc48ae51e535b-0-0' for key 1")