Comment 1 for bug 1431508

Get similar error when deleting a volume using both the checkbox method and the individual line item action method.

TypeError at /project/volumes/
'NoneType' object is not iterable
Request Method: POST
Request URL: http://<removed for confidentiality>/project/volumes/
Django Version: 1.6.1
Exception Type: TypeError
Exception Value:
'NoneType' object is not iterable
Exception Location: /usr/lib/python2.7/dist-packages/horizon/tables/base.py in get_object_by_id, line 1291
Python Executable: /usr/bin/python
Python Version: 2.7.6
Python Path:
['/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../..',
 '/usr/share/openstack-dashboard/openstack_dashboard',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-x86_64-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.7',
 '/usr/share/openstack-dashboard/']
Server time: Fri, 8 Jan 2016 00:17:19 +0000