$ git clone -n https://src.fedoraproject.org/rpms/modulemd-tools.git /var/lib/mock/f39-build-1532314-36223/root/chroot_tmpdir/scmroot/modulemd-tools
Cloning into '/var/lib/mock/f39-build-1532314-36223/root/chroot_tmpdir/scmroot/modulemd-tools'...
$ git fetch origin eac6268d206347f3dd4a409bd49196ab5bb7dc8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/modulemd-tools
 * [new ref]         eac6268d206347f3dd4a409bd49196ab5bb7dc8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eac6268 createrepo_mod: fix RHBZ 2247292 caused by new compression