$ git clone -n https://gitee.com/src-opencloudos-rpms/libtiff /var/lib/mock/dist-oc8-build-56935-15178/root/chroot_tmpdir/scmroot/libtiff
Cloning into '/var/lib/mock/dist-oc8-build-56935-15178/root/chroot_tmpdir/scmroot/libtiff'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtiff
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9667e0f import libtiff-4.0.9-29.tl3