$ git clone -n https://gitee.com/src-opencloudos-rpms/pnm2ppa.git /var/lib/mock/dist-oc9-build-47650-14592/root/chroot_tmpdir/scmroot/pnm2ppa
Cloning into '/var/lib/mock/dist-oc9-build-47650-14592/root/chroot_tmpdir/scmroot/pnm2ppa'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/pnm2ppa
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f97e306 import pnm2ppa-1.04-4.tl4