How is this even possible ?

Not so sure what you mean... the way she grows=? well it looks like she is doubled. I just would let her grow and look how she turns out. Some seeds showing mutations, But most mutations are ok, and the plant grows and flowers, jst looks different. And most mutations " grow out" . But some are not able to survive. So we just have to sit and wait. The lil one show good structure and good colour.. so we will see