$ git clone -n https://src.fedoraproject.org/rpms/fmf.git /var/lib/mock/f41-build-side-2-python-2728697-30800/root/chroot_tmpdir/scmroot/fmf
Cloning into '/var/lib/mock/f41-build-side-2-python-2728697-30800/root/chroot_tmpdir/scmroot/fmf'...
$ git fetch origin 472571735b6898282a17cdff189b80f15609d0a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fmf
 * [new ref]         472571735b6898282a17cdff189b80f15609d0a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4725717 convert GPLv2+ license to SPDX