title: Why PHAsset fetchAssetsWithOptions doesn't return all assets?
body: <p>There are 75 photos in My Photo Stream and 1 photo in Camera Roll(not in My Photo Stream). So totally I have 76 photos. But follow code only returns 51 photos:</p>
  
  <pre><code>    PHFetchOptions *options = [[PHFetchOptions alloc] init];
      options.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:YES]];
      assetsFetchResults = [PHAsset fetchAssetsWithOptions:options];
  </code></pre>
  
  <p>I know:</p>
  
  <blockquote>
    <p>If this method is called by an app linked on or after iOS 8.1, the
    results do not include photos synchronized to the device from iTunes
    or photos stored in an iCloud Shared Photo Stream.</p>
  </blockquote>
  
  <p>But none of the photos above are from iCloud Shared Photo Stream.</p>