fix(autosave): fix timer on autosave indicator

packages/component-faraday-ui/src/AutosaveIndicator.js

@@ -15,14 +15,22 @@ class AutosaveIndicator extends Component {
     this.timer = null
   }
 
+  componentDidMount() {
+    this.setTimer()
+  }
+
   componentWillReceiveProps({ autosave: nextAutosave }) {
     const { autosave, toggleVisible } = this.props
-    if (autosave && !isEqual(autosave, nextAutosave)) {
+    if (!isEqual(autosave, nextAutosave)) {
       toggleVisible()
       this.setTimer()
     }
   }
 
+  componentWillUnmount() {
+    clearTimeout(this.timer)
+  }
+
   setTimer = () => {
     const { toggleVisible, delay = 2000 } = this.props
     if (this.timer) {