$ git clone -n https://gitee.com/src-opencloudos-rpms/ecj /var/lib/mock/dist-oc8-build-56900-15178/root/chroot_tmpdir/scmroot/ecj
Cloning into '/var/lib/mock/dist-oc8-build-56900-15178/root/chroot_tmpdir/scmroot/ecj'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ecj
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba1b215 import ecj-4.20-10.tl3