Can currentReducer be exposed?
https://github.com/rackt/redux/blob/c5d9a8a11897ea558c348e02eaf76038563d57b9/src/createStore.js#L38
I have a usecase where I have some "Higher-Order redux store" that wouldwrap a store's currentReducer via a custom combineReducers and then replace the new reducer through the store's replaceReducer.