Fizz's Playful Trickster too Playful

At the end of my match while doing a playful trickster to dodge damage, the victory screen appears but as I land fizz does not become invulnerable and takes all that damage and dies. To recreate it, at the end of the game get near the enemy and while the game is just about to end let them throw all their damage at you and you e to avoid it. If the game ends it will cause the damage they did or tried to do to hit you as you fall off of playful trickster. To confirm I had this happen a second time in a custom game.