$ git clone -n https://gitee.com/src-opencloudos-rpms/libtiff.git /var/lib/mock/dist-oc8-build-229455-81348/root/chroot_tmpdir/scmroot/libtiff
Cloning into '/var/lib/mock/dist-oc8-build-229455-81348/root/chroot_tmpdir/scmroot/libtiff'...
$ git fetch origin dc4281a21105109f090d52ede002961ec7d48878:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtiff
 * [new ref]         dc4281a21105109f090d52ede002961ec7d48878 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc4281a import libtiff-4.0.9-36.tl3