import { createStore, combineReducers } from 'redux'
import { reducer as formReducerV5 } from 'redux-form-v5'
import { reducer as formReducer } from 'redux-form'

const reducers = {
  // ... your other reducers here
  form: formReducer,
  formV5: formReducerV5
}
const reducer = combineReducers(reducers)
const store = createStore(reducer)

const yourFormContainer = reduxForm({
  form: 'myForm'
  getFormState: state => state.formV5
})(YourForm);