title: UITextView style is being reset after setting text property
body: <p>I have <code>UITextView *_masterText</code> and after call method <code>setText</code> property font is being reset. 
  It's happening after I change sdk 7. 
  _masterText is <code>IBOutlet</code>, global and properties are set in storyboard. It's only me or this is general SDK bug?</p>
  
  <pre><code>@interface myViewController : UIViewController
  {
    IBOutlet UITextView *_masterText;
  }
  
  @implementation myViewController
  
  -(void)viewWillAppear:(BOOL)animated
  {
      [_masterText setText:@"New text"];
  }
  </code></pre>