$ git clone -n https://gitee.com/yueeranna/tengine.git /var/lib/mock/dist-an23-build-296860-65799/root/chroot_tmpdir/scmroot/tengine
Cloning into '/var/lib/mock/dist-an23-build-296860-65799/root/chroot_tmpdir/scmroot/tengine'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/yueeranna/tengine
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7fcd92 update to 3.0.0 and build with tongsuo