Comment 2 for bug 1939674

We are also seeing it in master promotion integration line: https://logserver.rdoproject.org/openstack-periodic-integration-main/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-build-containers-ubi-8-push/6fae76a/logs/container-builds/b3808f9e-cff5-41cd-b767-17f6cf6ae14c/base/os/mistral-base/mistral-base-build.log

```
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction test error:
  file /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release from install of containers-common-1:1.4.0-5.module_el8.5.0+878+851f435b.x86_64 conflicts with file from package redhat-release-8.2-1.0.el8.x86_64

time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt/buildah-bind-target-12\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt/buildah-bind-target-11\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt/buildah-bind-target-7\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt/buildah-bind-target-3\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt/rootfs\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="\"/var/tmp/buildah838002395/mnt\" is apparently not really mounted, skipping"
time="2021-08-12T08:44:32Z" level=debug msg="error building at step {Env:[PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin LANG=en_US.UTF-8 container=oci] Command:run Args:[dnf -y install openstack-mistral-common openstack-tripleo-common python3-shade python3dist\\(ansible\\) && dnf clean all && rm -rf /var/cache/dnf] Flags:[] Attrs:map[] Message:RUN dnf -y install openstack-mistral-common openstack-tripleo-common python3-shade python3dist\\(ansible\\) && dnf clean all && rm -rf /var/cache/dnf Original:RUN dnf -y install openstack-mistral-common openstack-tripleo-common python3-shade python3dist\\(ansible\\) && dnf clean all && rm -rf /var/cache/dnf}: error while running runtime: exit status 1"
```