cubicweb-bootstrap #3927775 AttributeError: 'Session' object has no attribute 'cnx' [validation pending]

When accessing "siteinfo" view, the following error is thrown:

Traceback (most recent call last):
  File "/home/carlos/src/cubicweb/web/views/ajaxcontroller.py", line 143, in publish
    result = func(*args)
  File "/home/carlos/src/cubicweb/web/views/ajaxcontroller.py", line 284, in __call__
    return self.serialize(implementation(self, *args, **kwargs))
  File "/home/carlos/src/cubicweb/web/views/ajaxcontroller.py", line 376, in view
    return self._call_view(viewobj, paginate=req.form.pop('paginate', False))
  File "/home/carlos/src/cubicweb/web/views/ajaxcontroller.py", line 246, in _call_view
    view.render(**kwargs)
  File "/home/carlos/src/cubicweb/view.py", line 137, in render
    view_func(**context)
  File "/home/carlos/src/cubes/bootstrap/views/debug.py", line 95, in call
    if not session.cnx:
AttributeError: 'Session' object has no attribute 'cnx'

Additional Information: Cubicweb: changeset: 9713:1141927b8494 tag: cubicweb-centos-version-3.19.0-1 tag: cubicweb-debian-version-3.19.0-1 tag: cubicweb-version-3.19.0 user: Julien Cristau <julien.cristau@logilab.fr> date: Mon Apr 28 18:35:35 2014 +0200 summary: [debian] set release date

Bootstrap Cube: changeset: 176:a518fb838cc6 branch: stable tag: tip user: RĂ©mi Cardona <remi.cardona@logilab.fr> date: Mon Jun 02 15:34:23 2014 +0200 summary: Added tag cubicweb-bootstrap-version-0.6.4, cubicweb-bootstrap-debian-version-0.6.4-1, cubicweb-bootstrap-centos-version-0.6.4-1 for changeset be73f5eb93fd

prioritynormal
typebug
done in0.6.5
load0.500
load left0.000
closed by#17fc4c616f1b [views] Ensure compatibility with CubicWeb >= 3.19 in ProcessInformationView
patch[views] Ensure compatibility with CubicWeb >= 3.19 in ProcessInformationView [applied]