$ git clone -n https://gitee.com/wenyuzifang/tang.git /var/lib/mock/dist-an23-build-470225-74061/root/chroot_tmpdir/scmroot/tang
Cloning into '/var/lib/mock/dist-an23-build-470225-74061/root/chroot_tmpdir/scmroot/tang'...
$ git fetch origin d5d9a006f0ad408a7fb8348fcddfa1ad49824d7f:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tang
 * [new ref]         d5d9a006f0ad408a7fb8348fcddfa1ad49824d7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5d9a00 Update code from upstream