Champ select bug

So i was just in a ranked game as first pick setting out my bans, and after the first few people called roles, i was first pick and asked for jung/top, our second pick asked for adc, our fourth pick asked for adc and our last pick asked for top/adc.. so a few seconds after my first ban the fourth pick, username deft uchiha, typed a message saying "hey guys everyone open up your edit masteries page and press the spacebar 3 times" and me thinking it was some kind of a joke or something, i went and did it.. and then my edit mastery page locked out all of my screen and didnt allow me to ban any other champions, and caused me to dodge the ranked game.. this users op.gg is http://na.op.gg/summoner/userName=deft+uchiha I would really like this bug to be fixed, and perhaps a ban or something for the player that is intentionally costing other players their hard earned LP when he doesnt get the role he wants