$ git clone -n https://gitee.com/src-opencloudos-rpms/pcm.git /var/lib/mock/dist-oc9-build-50828-14595/root/chroot_tmpdir/scmroot/pcm
Cloning into '/var/lib/mock/dist-oc9-build-50828-14595/root/chroot_tmpdir/scmroot/pcm'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/pcm
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7aa03a import pcm-202207-3.tl4