$ git clone -n https://gitee.com/src-opencloudos-rpms/mpfr.git /var/lib/mock/dist-oc9-pre-build-238380-82526/root/chroot_tmpdir/scmroot/mpfr
Cloning into '/var/lib/mock/dist-oc9-pre-build-238380-82526/root/chroot_tmpdir/scmroot/mpfr'...
$ git fetch origin 78061f7ab4f262689dbfc9625ab93cbe3d09e0ec:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mpfr
 * [new ref]         78061f7ab4f262689dbfc9625ab93cbe3d09e0ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78061f7 import mpfr-4.2.1-4.tl4