Comment 8 for bug 1789450

Reviewed: https://review.openstack.org/604830
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=c4e48ef3a149df81aa563d894cc6eb78f536edb8
Submitter: Zuul
Branch: stable/queens

commit c4e48ef3a149df81aa563d894cc6eb78f536edb8
Author: Vishakha Agarwal <email address hidden>
Date: Thu Aug 30 11:14:32 2018 +0530

    Mapped Groups don't exist breaks WebSSO

    The issue occurs if a user has a group that
    does not map to a project in OpenStack. At
    which point an exception is raised and the
    websso login blows up with a 500 message.
    This is because of the exception being raised
    when the group name not matches thus replacing
    that with a log.

    Change-Id: Ia7321705db118af28f3dc6e01d5b18e8650aa633
    Closes-Bug: #1789450
    (cherry picked from commit ee46f735359cb5381024a7dfa3f2b297badc6247)