Pre-game chat

Currently in league of legends if you call a role before somebody else, it is common courtesy to give them that role. The problem is that if I call a role then somebody joins after me and calls the same role they will call BS on me because you cant see chat messages that were sent before you arrive in chat. Can riot please fix? In addition to that I'm not sure if it was fixed that if 2 players joined at the same time it would show a different chat board for each one. (ex. we are both in chat and call mid immediately it will show: (Player1) : mid (player2) : mid and on player2's skreen (player2) : mid (player1) : mid