$ git clone -n https://gitee.com/gordonwwang/mysql.git /var/lib/mock/dist-ocs23-build-283941-27407/root/chroot_tmpdir/scmroot/mysql
Cloning into '/var/lib/mock/dist-ocs23-build-283941-27407/root/chroot_tmpdir/scmroot/mysql'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/gordonwwang/mysql
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1534cab update buildrequires;