$ git clone -n https://gitee.com/src-opencloudos-rpms/gmp.git /var/lib/mock/dist-oc8-build-74273-49912/root/chroot_tmpdir/scmroot/gmp
Cloning into '/var/lib/mock/dist-oc8-build-74273-49912/root/chroot_tmpdir/scmroot/gmp'...
$ git fetch origin 6b910be878bade0eb0276ed960783383e7f24cca:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gmp
 * [new ref]         6b910be878bade0eb0276ed960783383e7f24cca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b910be import gmp-6.1.2-11.tl3