Azir Turret Beam Lock-on [Gameplay]

Bug Description: An Azir turret locks on to an enemy champion, and even after leaving turret range, the lock on beam continues to follow the champion until the turret is destroyed.

How it happened: I'm not sure exactly what interactions caused this bug to take place, but here are the details of the event: Azir used his passive on the down outer mid allied turret, which had just been destroyed, but Quinn dove and secured killing Azir before the turret finished charing. She was still in turret range when the turret finished charging, and it locked onto Quinn and fired a shot. Quinn got out of range, but the turret's lock-on beam continued to follower her, without the turret attacking her. The beam extended to the length of about 2/3 of the way between opposing outer mid turrets, and then stopped, but continued to point in the direction of Quinn. Quinn later ganked bot lane and killed Twitch, all while the beam was pointing to her.

How to reproduce the bug: Like I said, I don't know exactly what caused it, but I'd have to say that the turret's attacking Quinn immediately after it charged may be the reason. I don't think that this can apply to normal turrets as they are operational from the beginning of the game until they are destroyed. It may be beneficial to test this with a normal turret recovering from Bard's stasis while enemy champions are within range.

Resources: I have attached a screenshot of the beam pointing to Quinn, hidden by the fog of war as she moves in to kill Twitch on bot lane. I have also Included a link to the match history for that game, which contains the builds of each champion at the time of the bug. The bug duration time was from approximately 19:00-21:00.