$ git clone -n https://gitee.com/src-opencloudos-rpms/jetty.git /var/lib/mock/dist-oc9-build-50281-14595/root/chroot_tmpdir/scmroot/jetty
Cloning into '/var/lib/mock/dist-oc9-build-50281-14595/root/chroot_tmpdir/scmroot/jetty'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/jetty
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfb6a8c import jetty-9.4.40-2.tl4