$ git clone -n https://gitee.com/src-opencloudos-rpms/maven-jar-plugin.git /var/lib/mock/dist-oc9-build-63998-16463/root/chroot_tmpdir/scmroot/maven-jar-plugin
Cloning into '/var/lib/mock/dist-oc9-build-63998-16463/root/chroot_tmpdir/scmroot/maven-jar-plugin'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/maven-jar-plugin
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21d5622 import maven-jar-plugin-3.2.2-4.tl4