$ git clone -n https://gitee.com/wency_cn/cups_1770973362.git /var/lib/mock/dist-an23-build-514543-75110/root/chroot_tmpdir/scmroot/cups_1770973362
Cloning into '/var/lib/mock/dist-an23-build-514543-75110/root/chroot_tmpdir/scmroot/cups_1770973362'...
$ git fetch origin 102f83fb59bc55caaa28b579a781411c8178da4c:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1770973362
 * [new ref]         102f83fb59bc55caaa28b579a781411c8178da4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 102f83f Update code from upstream