Currently, there is a problem with the Mercenary perk Cleave. In a fight against multiple opponents, if the player does a regular melee strike on an enemy that is NOT in the first slot (enemy A), then the cleave will attack the player and any temporary companions on the player's side.
BTW, it took all of my willpower to not name this bug report "Stop hitting yourself"
BTW, it took all of my willpower to not name this bug report "Stop hitting yourself"