bind proper store context in connectAdvanced and the Subscription util

Author: vhmth

src/components/connectAdvanced.js

@@ -159,7 +159,8 @@ export default function connectAdvanced(
       }
 
       initSelector() {
-        const { dispatch, getState } = this.store
+        const { dispatch } = this.store
+        let getState = this.store.getState.bind(this.store)
         const sourceSelector = selectorFactory(dispatch, selectorFactoryOptions)
 
         // wrap the selector in an object that tracks its results between runs

src/utils/Subscription.js

@@ -5,7 +5,7 @@ export default class Subscription {
   constructor(store, parentSub) {
     this.subscribe = parentSub
       ? parentSub.addNestedSub.bind(parentSub)
-      : store.subscribe
+      : store.subscribe.bind(store)
 
     this.unsubscribe = null
     this.nextListeners = this.currentListeners = []