Haunted Zyra Ranged(Q) Plant AAs

I was playing Haunted Zyra and noticed that her Thornspitter uses the projectile from her classic skin when autoing. I don't know if it's a bug or it's intended, but since Zyra gets a different AA with this skin, her plant using the default one just seems weird. Thanks for the attention and sorry for being unable to provide a video or something else showing it.