$ git clone -n https://gitee.com/src-opencloudos-rpms/plexus-compiler.git /var/lib/mock/dist-oc9-build-49209-14595/root/chroot_tmpdir/scmroot/plexus-compiler
Cloning into '/var/lib/mock/dist-oc9-build-49209-14595/root/chroot_tmpdir/scmroot/plexus-compiler'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/plexus-compiler
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc09ddc import plexus-compiler-2.12.1-4.tl4