[Gameplay] Neeko transform bug

I recently played a game of Neeko and ran into a bug with her passive, when you play with a Kayn and he has transformed into one of his forms. If you then try to transform into Kayn using your passive you transform into standard Kayn. Okay so basically;

1. Play neeko with a Kayn on your team
2. Let Kayn transform into one of his forms
3. Transform into Kayn

I'm pretty sure it has something to do with the different forms thing, like nidalee or Jayce for example. I'm also pretty sure it'd do the same with a Kha'Zix after he's upgraded some of his stuff.