$ git clone -n https://src.fedoraproject.org/rpms/cloud-init.git /var/lib/mock/f45-build-4058-330/root/chroot_tmpdir/scmroot/cloud-init
Cloning into '/var/lib/mock/f45-build-4058-330/root/chroot_tmpdir/scmroot/cloud-init'...
$ git fetch origin 3eb8ae8ad5095cbee0eb3446bb2d30d2613db836:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cloud-init
 * [new ref]         3eb8ae8ad5095cbee0eb3446bb2d30d2613db836 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3eb8ae8 Pick a proposed patch for util-linux 2.42 compatibility