$ git clone -n https://src.fedoraproject.org/rpms/step.git /var/lib/mock/f40-build-2414436-60564/root/chroot_tmpdir/scmroot/step
Cloning into '/var/lib/mock/f40-build-2414436-60564/root/chroot_tmpdir/scmroot/step'...
$ git fetch origin f861b82074a1c8e52a82a527cfff1316f32f57ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/step
 * [new ref]         f861b82074a1c8e52a82a527cfff1316f32f57ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f861b82 Rebuild (qt6)