Comment 9 for bug 1936420

As another point of data - the issue started on the 15th July. It can be seen pretty clearly in the attached screenshot from [1] where the first FAILED job there is hitting this issue [2]

[1] https://review.rdoproject.org/zuul/builds?job_name=periodic-tripleo-ci-centos-8-standalone-validation-train
[2] https://logserver.rdoproject.org/openstack-component-validation/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-standalone-validation-train/ea68c20/logs/undercloud/var/log/tempest/stestr_results.html.gz