$ git clone -n https://gitee.com/src-opencloudos-rpms/tomcatjss.git /var/lib/mock/dist-oc9-build-131452-78561/root/chroot_tmpdir/scmroot/tomcatjss
Cloning into '/var/lib/mock/dist-oc9-build-131452-78561/root/chroot_tmpdir/scmroot/tomcatjss'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tomcatjss
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 082304a import tomcatjss-8.4.1-3.tl4