$ git clone -n https://src.fedoraproject.org/rpms/step.git /var/lib/mock/f40-build-2131515-50805/root/chroot_tmpdir/scmroot/step
Cloning into '/var/lib/mock/f40-build-2131515-50805/root/chroot_tmpdir/scmroot/step'...
$ git fetch origin 9ab86ed4093de78bed05a67edcaf3a8eccef013a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/step
 * [new ref]         9ab86ed4093de78bed05a67edcaf3a8eccef013a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ab86ed 23.08.2