Heimerdinger's turrets retain lock on enemy champions

I have more details on this bug. I have seen it on multiple maps. If a turret locks onto an enemy champion, and there are no minions or other champions to switch to, it retains its lock no matter how far away the enemy champion is. If a minion comes within range, it will switch to that minion as normal. Judging by the travel time of the shot and time between shots compared to normal, I have seen an enemy forced to retreat all the way back to the base from their outer turret and it still fired at that enemy. I have also seen an off screen kill from this.