title: Is UICollectionView.backgroundView broken
body: <p>I'm writing something relatively simple, or so I thought.</p>
  
  <p>Firstly, the code, for which I'm trying to place an image on the background of the <code>UICollectionView</code> if there are no results returned from my server. The image is 200 by 200:</p>
  
  <pre><code>UIView *myView = [[UIView alloc] initWithFrame:self.view.bounds];
  CGRect myViewSpace = self.view.bounds;
  CGFloat myX = (myViewSpace.size.width /2.0) - 100;
  CGFloat myY = (myViewSpace.size.height /2.0) - 100;
  UIImageView *imView = [[UIImageView alloc] initWithFrame:CGRectMake(myX, myY, 200, 200)];
  imView.image = [UIImage imageNamed:@"imNotHome"];
  [myView addSubview:imView];
  myCollectionView.backgroundView = myView;
  </code></pre>
  
  <p>Once there are results, I want to be able to remove it.</p>
  
  <p>I thought it'd be as simple as placing the following, before I reloaded the <code>UICollectionView</code>:</p>
  
  <pre><code>[myCollectionView.backgroundView removeFromSuperview];
  </code></pre>
  
  <p>However, it appears to be doing nothing.</p>
  
  <p>Am I missing something?</p>
  
  <p>Thanks in advance!</p>