[Gameplay] Katarina Turret Damage Timing

I've noticed in many games, as I main Katarina, that the turret damage calculation happens at the wrong time---this happens especially after a recent patch caused them to shoot sooner/faster. The basic idea:

1. Do something within turret range that would cause the turret to focus on you (i.e. attack enemy champion)
2. Shunpo out of turret range
3. Notice that damage is applied well before turret particle travels to Katarina

I managed to catch this bug in a recent game via Baron Replays. I've uploaded the replay file to https://dl.dropboxusercontent.com/u/1617350/shirokuraudo-Katarina%202014-11-12%206-43-19%20Win.lpr

The sequence happens like this (I am Katarina):

1. At 19:40 I throw a Bouncing Blades at an enemy Blitzcrank within turret range
2. At 19:41 the turret focuses me
3. At 19:41, immediately after being focused by the turret, I Shunpo to an allied champion out of turret range.
4. At 19:41, immediately after Shunpo, turret damage is applied to me.
5. At 19:42, the turret particle reaches me.

While this is not a game-stopping bug, it does affect at least one thing; Zhonya's---an essential part of Katarina's kit.

It's impossible to time when to Zhonya's to avoid turret damage if the damage is applied before the particle reaches you.