Nami's Q on Tristana's W bug [GAMEPLAY]

Whenever Tristana uses her W (the jump) and Nami catches Tristana with her Q (ths stun) Tristana flies up into the air, disappears for a couple of seconds and comes back down again.

1. Tristana uses W (the jump) 2. Nami uses Q (the stun) on Tristana while Tristana is in her W 3. Tristana flies up into the air disappearing for a few seconds and comes back down.

I did this a couple of times now and it happened 3 times in one of my games.