$ git clone -n https://src.fedoraproject.org/rpms/fio.git /var/lib/mock/f41-build-735064-13218/root/chroot_tmpdir/scmroot/fio
Cloning into '/var/lib/mock/f41-build-735064-13218/root/chroot_tmpdir/scmroot/fio'...
$ git fetch origin 3b2a8cd3f0d368f8afd69ed424f0d5297675256b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fio
 * [new ref]         3b2a8cd3f0d368f8afd69ed424f0d5297675256b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b2a8cd Update fio.spec