Redux add/edit screen doesn't use store

[FilippoVigani]

I was wondering the reasoning behind the AddEditScreen not using the store to save its state. I would've liked to see how redux is supposed to be used in the scope of editable textboxes. Should I have an action for each edit of the textbox?
How do I decide whether I should use the global state or just use a StatefulWidget?
Why was a GlobalKey used here?
How does the Navigator work with Redux? For instance, should I use the Navigator to route different pages of a shared bottom navigation, or just use a property of global state like in the provided example?

[myfreax]

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