QCocoaSessionManager::allowsInteraction() always returns false on Mac

As the subject says, for committing Data if user Interaction is saught on Mac QCocoaSessionManager::allowsInteraction() always return false. This works on Windows.

Looking at source code QCocoaSessionManager::allowsInteraction() is hard coded to return false. So it looks like on mac this is not supposed to work but then documentation does not talk anything about this limitation on Mac.