iOS 10 barTintColor animation : <p>I've noticed a change in the way bar tint color animates in ios 10. I've created a sample project outlining the change: <a href="https://github.com/johnryan/ios10BarTintDemo" rel="noreferrer">Github: ios10BarTintDemo</a></p>

<p>Basically on ios 9 the barTintColor animates smoothly using <code>[UIViewControllerTransitionCoordinator animateAlongsideTransition]</code></p>

<p>but on ios 10 the animations are much less smooth and when popping a view controller doesn't animate at all, I've tried adding <code>[self.navigationController.navigationBar layoutIfNeeded]</code> as mentioned in some similar answers but this doesn't seem to have any effect when pushing/popping controllers.</p>
