Fossil with Commonmark

        nUncl -= nRow;
        nRow = 0;
        blob_appendf(&deleteWhere, ",%d", rid);
      }
    }
    db_finalize(&q);
    db_multi_exec(
      "DELETE FROM unclustered WHERE rid NOT IN (0 %s)",
      "DELETE FROM unclustered WHERE rid NOT IN (0 %s)"
      "   AND NOT EXISTS(SELECT 1 FROM phantom WHERE rid=unclustered.rid)",
      blob_str(&deleteWhere)
    );
    blob_reset(&deleteWhere);
    if( nRow>0 ){
      md5sum_blob(&cluster, &cksum);
      blob_appendf(&cluster, "Z %b\n", &cksum);
      blob_reset(&cksum);