Builds containing Unity ARKit Plugin (https://www.assetstore.unity3d.com/en/#!/content/92515) crashes if device is in landscape mode when launching the app.

Steps:
1. Build project ("ARKitCrash") for iOS11 device that supports ARKt
2. Hold device in landscape mode (make sure autorotate is enabled)
3. Run on device (from Xcode)

Result: iOS Player crashes.

Reproduced with: 2017.2.0b11.
Not reproduced with: 2017.3.0a7, 2017.1.1p2.

Tested with: iPhone 6S iOS11.0, Xcode 9.0.