$ git clone -n https://git.cclinux.org/stage/rpms/realtime-tests.git /var/lib/mock/dist-circle9-build-120936-85718/root/chroot_tmpdir/scmroot/realtime-tests
Cloning into '/var/lib/mock/dist-circle9-build-120936-85718/root/chroot_tmpdir/scmroot/realtime-tests'...
$ git fetch origin cf919083be5b9a555db77975a100551259a824b9:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/realtime-tests
 * [new ref]         cf919083be5b9a555db77975a100551259a824b9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf91908 import realtime-tests-2.6-5.el9