If using Ctrl+Z to redo mana when casting a spell, game restarts.
The game attempts to return the the original gamestate by restarting the game, but once it returns to the place restart happens, if you try to undo again it restarts the whole game from turn 1 - back to choosing 1st/2nd and mulligans.
This occurred across multiple games of Vintage Cube league.
The game attempts to return the the original gamestate by restarting the game, but once it returns to the place restart happens, if you try to undo again it restarts the whole game from turn 1 - back to choosing 1st/2nd and mulligans.
This occurred across multiple games of Vintage Cube league.