$ git clone -n https://src.fedoraproject.org/rpms/fzf.git /var/lib/mock/f41-build-side-1-3132500-39657/root/chroot_tmpdir/scmroot/fzf
Cloning into '/var/lib/mock/f41-build-side-1-3132500-39657/root/chroot_tmpdir/scmroot/fzf'...
$ git fetch origin b37dd4eca33084ecc437b311350c1be465e2d5df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fzf
 * [new ref]         b37dd4eca33084ecc437b311350c1be465e2d5df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b37dd4e Update to latest version (#2325249)