$ git clone -n https://src.fedoraproject.org/rpms/francis.git /var/lib/mock/f45-build-9209-400/root/chroot_tmpdir/scmroot/francis
Cloning into '/var/lib/mock/f45-build-9209-400/root/chroot_tmpdir/scmroot/francis'...
$ git fetch origin afff643992cf0a7634de4b3904faf78b5ef82f53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/francis
 * [new ref]         afff643992cf0a7634de4b3904faf78b5ef82f53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afff643 26.08.1