$ git clone -n https://gitee.com/src-opencloudos-rpms/sdl12-compat.git /var/lib/mock/dist-oc9-build-45019-14591/root/chroot_tmpdir/scmroot/sdl12-compat
Cloning into '/var/lib/mock/dist-oc9-build-45019-14591/root/chroot_tmpdir/scmroot/sdl12-compat'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sdl12-compat
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d3786f import sdl12-compat-1.2.52-3.tl4