$ git clone -n https://gitee.com/src-opencloudos-rpms/tss2.git /var/lib/mock/dist-oc9-build-131478-78571/root/chroot_tmpdir/scmroot/tss2
Cloning into '/var/lib/mock/dist-oc9-build-131478-78571/root/chroot_tmpdir/scmroot/tss2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tss2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ac620e import tss2-2.1.1-3.tl4