Why is viewDidLoad called twice when the rootViewController property of UIWindow is set?

Question

There were already a couple of similar questions, but it wasn’t exactly the same as in my case. Just start a new view based project, add viewDidLoad and a

Answer 1

It looks like a bug, because it’s only reproducible in Xcode 4. I will file a bug.

See also http://shurl.at/5u (Apple Developer Forums)