$ git clone -n https://gitee.com/src-opencloudos-rpms/jansson.git /var/lib/mock/dist-oc9-build-69374-46928/root/chroot_tmpdir/scmroot/jansson
Cloning into '/var/lib/mock/dist-oc9-build-69374-46928/root/chroot_tmpdir/scmroot/jansson'...
$ git fetch origin 305c52a328cca0c16d02cc5a84a23fa66b9724d4:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/jansson
 * [new ref]         305c52a328cca0c16d02cc5a84a23fa66b9724d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 305c52a import jansson-2.14-5.tl4