$ git clone -n https://src.fedoraproject.org/rpms/step.git /var/lib/mock/f42-build-3354210-45019/root/chroot_tmpdir/scmroot/step
Cloning into '/var/lib/mock/f42-build-3354210-45019/root/chroot_tmpdir/scmroot/step'...
$ git fetch origin a647132bd489596cd98bf8d9800c61595d828574:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/step
 * [new ref]         a647132bd489596cd98bf8d9800c61595d828574 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a647132 24.12.3