fix content shouldComponentUpdate logic

lib/components/content.js

@@ -81,9 +81,13 @@ class Content extends React.Component {
    */
 
   shouldComponentUpdate = (props, state) => {
-    return props.state.isNative
-      ? false
-      : true
+    return (
+      props.className != this.props.className ||
+      props.readOnly != this.props.readOnly ||
+      props.spellCheck != this.props.spellCheck ||
+      props.style != this.props.style ||
+      props.state.isNative !== true
+    )
   }
 
   /**