From the results of the match that I saw, it ended in a draw because each of them was only able to score one goal even though Inter Milan was able to control the ball better in the Milan derby match in the Coppa Italia event. And to determine who will enter the final, we also have to see how they go through the second leg because for now the aggregate is still the same, while for the other team, Bologna, who has a better chance of being in the Coppa Italia final this season because they were able to win by a landslide over Empoli.
Of course, if they scored more goals, the match may not end up with a draw. 
However, with this draw, the next match will still be very interesting. The next match will be in Inter home, I think Inter Milan will have a bigger chance to win it.