$ git clone -n https://gitee.com/src-opencloudos-rpms/trace-cmd.git /var/lib/mock/dist-oc9-build-45284-14591/root/chroot_tmpdir/scmroot/trace-cmd
Cloning into '/var/lib/mock/dist-oc9-build-45284-14591/root/chroot_tmpdir/scmroot/trace-cmd'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/trace-cmd
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 099c9b7 import trace-cmd-3.1.4-3.tl4