$ git clone -n https://src.fedoraproject.org/rpms/mokutil.git /var/lib/mock/f40-build-802726-144073/root/chroot_tmpdir/scmroot/mokutil
Cloning into '/var/lib/mock/f40-build-802726-144073/root/chroot_tmpdir/scmroot/mokutil'...
$ git fetch origin 911402d90b7360c8d9b8bbf87ec6e6df91dc64a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mokutil
 * [new ref]         911402d90b7360c8d9b8bbf87ec6e6df91dc64a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 911402d 0.7.1