$ git clone -n https://src.fedoraproject.org/rpms/openqa.git /var/lib/mock/f39-build-1642161-40212/root/chroot_tmpdir/scmroot/openqa
Cloning into '/var/lib/mock/f39-build-1642161-40212/root/chroot_tmpdir/scmroot/openqa'...
$ git fetch origin ae3b55a30cf9fa78de2bd91e0cacb494715fa48d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openqa
 * [new ref]         ae3b55a30cf9fa78de2bd91e0cacb494715fa48d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae3b55a Add missing patch