Nesting a UINavigationController inside a view with a maskView breaks visual effects for all visible nav bars
If a UINavigationController is embedded inside of a UIView that has a maskView, then that navigation controller's navigation bar has a broken background visual effect--things behind it are not blurred, leading to an illegible and ugly navigation bar.
Furthermore, any ancestor UINavigationController's navigation bar loses its background entirely.
- Build and run the attached demo app.
- Scroll the text underneath the nav bar.
Nav bar blurs text.
Text is not blurred; outer nav bar is missing its background entirely.
iOS 8 beta 5 simulator and device
iOS 8 beta 5 (12A4345d)