Surrender Bug

Our team had just destroyed all their turrets and was about to destroy the nexus when the other team had surrendered. Full votes and everything. In response, our team surrendered as well. Prior to the new game build, this would just end up with a victory for us because the other team had surrendered first. But what happened was the other team's nexus blowing up for the surrender, and then our nexus blowing which resulted in a defeat for us. So what I'm wondering is if the other team had surrendered first, then wouldn't we get the victory regardless if we surrendered after them like in the previous build of the game? Is this a bug?