Bug on match – Win but got draw (Ladder)

Hello again!
We had a game on ladder, where a team selected all the maps to challenge us. But we only played 3 maps. So we just put the results on the maps we played (3 maps and left 9 blank or 0x0). The Ladder showed as if we had draw. In fact the match shows that there was a winner, with green on the highest scorecard and red on the lower scoreboard, but on the ladder table counted point as tie. I had to edit the match by admin and delete the maps that we didnt played. So system could work great and countered as win on ladder table.