$ git clone -n https://gitee.com/opencloudos-stream/gmp.git /var/lib/mock/dist-ocs23-build-233809-20084/root/chroot_tmpdir/scmroot/gmp
Cloning into '/var/lib/mock/dist-ocs23-build-233809-20084/root/chroot_tmpdir/scmroot/gmp'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gmp
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c19d170 Rebuilt for loongarch release