$ git clone -n https://gitee.com/src-opencloudos-rpms/libtiff.git /var/lib/mock/dist-oc8-build-137218-79525/root/chroot_tmpdir/scmroot/libtiff
Cloning into '/var/lib/mock/dist-oc8-build-137218-79525/root/chroot_tmpdir/scmroot/libtiff'...
$ git fetch origin 62251561291262b57a4d2734641fdf58cc2f80eb:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtiff
 * [new ref]         62251561291262b57a4d2734641fdf58cc2f80eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6225156 import libtiff-4.0.9-34.tl3