Comment 10 for bug 1717918

Rabi, thanks for your comment.
From the link you pasted[1], The re-authentication happened in keystone that looks like working for all kinds keystone session(not only trusts auth plugin but also [2]). If that we could leave reauthentication_auth_method = ""(re-authentication will still work). Please correct me if anything wrong.

[1] https://github.com/openstack/keystoneauth/blob/master/keystoneauth1/session.py#L724-L726
[2] https://github.com/openstack/heat/blob/master/heat/common/context.py#L283-L284