If there is any method with @AfterExtras passing new Intent to activity causes calling onNewIntent(), from there setIntent() and finally injectExtras_() where all new extras are set. And it's great.

On the other hand if there is no any @AfterExtras method generated subclass has no onNewIntent() method, and in result extra is not updated.

This is unfortunate if extra does not cause any instant action, but is used later - for example in my case there is only one extra that is passed by to next activity, without any operations on it. So currently I had to add blank method with @AfterExtras annotation just to make sure that onNewIntent() is generated.