v5 breaking Immutable.js support for top level state.

[jungdj]

Hi

I have a project running on redux with immutable.js, and my entire Redux state tree is an Immutable.js object. I have followed the guide on redux.js.org.

I don't understand why redux-persist is not supporting top level immutable state from v5 by blocking users from overriding state method.

Do you have any plan to support top level state with various types?

** This issues has been discussed on redux-persist-transform-immutable and redux-persist-immutable