$ git clone -n https://gitee.com/src-opencloudos-rpms/bcc /var/lib/mock/dist-oc9-build-66931-17413/root/chroot_tmpdir/scmroot/bcc
Cloning into '/var/lib/mock/dist-oc9-build-66931-17413/root/chroot_tmpdir/scmroot/bcc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/bcc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aea32c8 import bcc-0.28.0-3.tl4