Allow not render menu

lib/Autocomplete.js

@@ -474,13 +474,13 @@ class Autocomplete extends React.Component {
       minWidth: this.state.menuWidth,
     }
     const menu = this.props.renderMenu(items, this.props.value, style)
-    return React.cloneElement(menu, {
+    return menu ? React.cloneElement(menu, {
       ref: e => this.refs.menu = e,
       // Ignore blur to prevent menu from de-rendering before we can process click
       onTouchStart: () => this.setIgnoreBlur(true),
       onMouseEnter: () => this.setIgnoreBlur(true),
       onMouseLeave: () => this.setIgnoreBlur(false),
-    })
+    }) : null;
   }
 
   handleInputBlur(event) {