AssertionError: Session ID not set

[anonymous]

How to Reproduce

While doing a POST operation on /prefs/advanced, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'__FORM_TOKEN': u'9c8a5fbb3e140c40e2566556',
 'action': u'save',
 'loadsid': u'',
 'newsid': u'fab1c92ece10f4a95f297994',
 'panel_id': u'advanced',
 'restore': u'Load'}

User Agent was: Mozilla/4.0 #compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB0.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; eSobiSubscriber 2.0.4.16#

#### System Information ####

Trac	0.11.8dev-r10236
Python	2.7.3 #default, Mar 13 2014, 11:26:58# [GCC 4.7.2]
setuptools	0.6
psycopg2	2.4.5
Genshi	0.6.1
mod_wsgi	3.3 #WSGIProcessGroup bitten WSGIApplicationGroup %{GLOBAL}#
Pygments	1.5
Bitten	0.6dev-r934
Subversion	1.6.17 #r1128011#
Docutils	0.8.1
jQuery:	1.2.6

#### Python Traceback ####

Traceback #most recent call last#:
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/web/main.py", line 450, in _dispatch_request
    dispatcher.dispatch#req#
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/web/main.py", line 206, in dispatch
    resp # chosen_handler.process_request#req#
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/prefs/web_ui.py", line 73, in process_request
    template, data # chosen_provider.render_preference_panel#req, panel_id#
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/prefs/web_ui.py", line 91, in render_preference_panel
    self._do_load#req#
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/prefs/web_ui.py", line 133, in _do_load
    req.session.get_session#oldsid#
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/web/session.py", line 184, in get_session
    self.bake_cookie##
  File "/usr/local/virtualenv/0.11-stable/lib/python2.7/site-packages/Trac-0.11.8dev_r10236-py2.7.egg/trac/web/session.py", line 165, in bake_cookie
    assert self.sid, 'Session ID not set'
AssertionError: Session ID not set

[rjollos]

This is a Trac issue and will be resolved by upgrading this Trac instance.