Open Radar

 
Summary:
If a modally-presented UIViewController accesses its presentationController -- just to log it, just to inspect the class, etc. -- it will never be deallocated when dismissed.

Attached is a sample project which reproduces it with very minimal code. There are two defines:
1. Log the controller after dismiss (using a weak ptr and a timer)
2. Log the presentation controller after the view appears.

The only required one to reproduce is the latter. I've reproduced this under iOS 9 as well as iOS 8, unfortunately.

Steps to Reproduce:
1. Access a UIViewController's presentationController
2. Watch the lifecycle of the UIViewController from that point forward.
3. Note the UIViewController never deallocates again.

Expected Results:
The UIViewController is not overretained by calling .presentationController.

Actual Results:
The UIViewController is overretained by calling .presentationController.

Version:
Xcode 7.0 beta 3 (7a152u) & Xcode 6.4 (6e35b)

Notes:


Configuration:
iOS Simulator - iOS 9 and iOS 8.3

Attachments:
'PresentedControllerOverretain.zip' was successfully uploaded.


Sample code: https://bitbucket.org/zacwest/presentedcontrolleroverretain