Pass whole action to reducerBranch

lib/potent-reducer.js

@@ -39,9 +39,9 @@ export const createStore = options => {
 function makeReducerFn(reducer, { onUpdate, logging }) {
   const noop = state => state
   return (prevState, action) => {
-    const { type, ...payload } = action
+    const { type } = action
     const reducerBranch = reducer[type] || reducer['default'] || noop
-    const nextState = reducerBranch(prevState, payload)
+    const nextState = reducerBranch(prevState, action)
     const stats = { prevState, nextState, action }
     typeof onUpdate === 'function' && onUpdate(stats)
     if (logging) logger(stats)