fix hashchange listener

src/Title.js

@@ -26,7 +26,7 @@ class ControlBar extends PureComponent {
       let text = decodeURIComponent(window.location.hash).substr(1);
       if (text.lastIndexOf('?') !== -1)
         text = text.substr(0, text.lastIndexOf('?')); // fuck wechat '#param?nsukey=...'
-      if (text === '##') return;
+      if (text !== '#' && text !== '##') {
         this.setState(
           {
             search_text: text,
@@ -36,7 +36,9 @@ class ControlBar extends PureComponent {
           },
         );
       }
+    }
 
+    console.log('add change lis');
     window.addEventListener(
       'hashchange',
       () => {