Trades should have priority over building (building canceled if I make a trade)
I asked for a trade, and then tried to put a road.
Only after the road options was highlighted, someone agreed to the trade, but when i clicking the V it did not respond. it was a very fast game, so i didnt have enough time to cancel the road building and then accept the trade.
So, if it is possible, to make the trade accepted while building a road (I guess it is the same for building a settlement/city, not sure...)