Open Radar

 
Pushing an UIViewController with its UINavigationItems largeTitleDisplayMode set to .never results in an incorrect frame when using an UISplitViewController. This problem only occurs if the UISplitViewController is collapsed.

Steps to Reproduce:
* Create a new project with the master detail template
* Add a third view controller to the storyboard 
* Create a "Show Detail" segue from the detail view controller to the newly added view controller (e.g. via a button)
* Set the largeTitleDisplayMode on the detail view controller to .always
* Set the largetTitleDisplayMode on the newly added view controller to .never
* Run the project on an iPhone or iPhone Simulator
* Navigate to the newly added view controller

Expected Results:
* The navigation bar should collapse smoothly
* The navigation bars frame should not exceed the visible navigation bar size

Actual Results:
* The navigation bar frame jumps from large to small
* The navigation bars frame is bigger than the visible navigation bar. This leads to content below the invisible navigation bar frame not receiving touches (this is especially problematic if there is a table view below).

Version/Build:
iOS 12.1
iOS 11.4

Configuration:
-