$ git clone -n https://gitee.com/wenyuzifang/lttng-ust.git /var/lib/mock/dist-an23-build-470041-74061/root/chroot_tmpdir/scmroot/lttng-ust
Cloning into '/var/lib/mock/dist-an23-build-470041-74061/root/chroot_tmpdir/scmroot/lttng-ust'...
$ git fetch origin fbb6418234bae3f8913a5392ec79a14ce410281a:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/lttng-ust
 * [new ref]         fbb6418234bae3f8913a5392ec79a14ce410281a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbb6418 Update code from upstream