Cursed Child Question
In the new book Albus and Scorpius are able to change events in the past with the time turner. My question is did the rules of the time turner change?
When Hermione and Harry used it in PoA we see that they can't exactly change events but only cause them to happen the way they've always happened. Examples of this are when they distract Lupin and when Harry saves himself from the Dementors.
So why could the kids change things the way they did?
An argument could be made that they really didn't change anything since everything was returned to normal at the end. That means Harry was always present when his parents were killed and that Cedric always saved the boys in the Triwizard Tournament. It's an interesting concept imo.
Anyway I'd love to hear the thoughts of others on this. Can the time turners actually change the past? Or will can they only ensure things happen a specific way?