$ git clone -n https://gitee.com/mgb01105731/flexiblas.git /var/lib/mock/dist-an23-build-445698-73283/root/chroot_tmpdir/scmroot/flexiblas
Cloning into '/var/lib/mock/dist-an23-build-445698-73283/root/chroot_tmpdir/scmroot/flexiblas'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/flexiblas
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5db3abb Update to 3.4.2 from 3.3.0