$ git clone -n https://src.fedoraproject.org/rpms/python-xarray.git /var/lib/mock/f38-build-side-42-init-devel-1035420-29746/root/chroot_tmpdir/scmroot/python-xarray
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1035420-29746/root/chroot_tmpdir/scmroot/python-xarray'...
$ git fetch origin dd372c6ddb3e36edd9a84ea4a23557ed2cd10013:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-xarray
 * [new ref]         dd372c6ddb3e36edd9a84ea4a23557ed2cd10013 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd372c6 Update to latest version (#2208416)