Keystone v3 cannot list neutron ports and policies with bad admin context

Member from non-default domain is not able run:

neutron port-list
neutron subnet-create

It is caused by changes in calling admin role context in Neutron Liberty:

 > /usr/lib/python2.7/dist-packages/neutron/context.py(123)__init__()
-> super(Context, self).__init__(*args, **kwargs)
(Pdb) p kwargs
{'tenant_id': None, 'is_admin': True, 'overwrite': False, 'user_id': None}
(Pdb) n
> /usr/lib/python2.7/dist-packages/neutron/context.py(124)__init__()
-> self._session = None
(Pdb)
--Return--
> /usr/lib/python2.7/dist-packages/neutron/context.py(124)__init__()->None
-> self._session = None
(Pdb)
--Return--
> /usr/lib/python2.7/dist-packages/neutron/context.py(139)get_admin_context()-><neutron...525d7610>
-> overwrite=False)
(Pdb) list
134 @removals.removed_kwarg('load_admin_roles')
135 def get_admin_context(read_deleted="no", load_admin_roles=True):
136 return Context(user_id=None,
137 tenant_id=None,
138 is_admin=True,
139 -> overwrite=False)
140

I requires modification in vnc_openstack/neutron_plugin_interface.py

- role = string.join(context['roles'], ",")
+ if 'roles' not in context and context['is_admin']:
+ role = 'admin'
+ else:
+ role = string.join(context['roles'], ",")