UICollectionView scroll Indicator displayed behind section header views

Originator:web
Number:rdar://35645980 Date Originated:
Status:Unresolved Resolved:No
Product:UIKit Product Version:iOS 11.x
Classification:Bug Reproducible:Always
 
Summary:

UICollectionview scroll Indicator is always being displayed behind section header views on iOS 11. This has also been verified in iOS 11.2 beta. 

Steps to Reproduce:

Create an app with a UICollectionView with section headers. Scroll the content and watch the scroll bar be behind the section header view.

Expected Results:

Scroll bar should always be in-front of UICollectionView subviews

Actual Results:

Scroll bar is shown behind the section header view.

Comments

Example project

https://www.dropbox.com/s/h4028vvs2slrxk7/CollectViewBug.zip?dl=0


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