$ git clone -n https://gitee.com/src-opencloudos-rpms/libtracecmd.git /var/lib/mock/dist-oc9-build-70541-47444/root/chroot_tmpdir/scmroot/libtracecmd
Cloning into '/var/lib/mock/dist-oc9-build-70541-47444/root/chroot_tmpdir/scmroot/libtracecmd'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtracecmd
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d764b9 import libtracecmd-1.3.1-3.tl4