UI cannot be navigated using Bluetooth keyboards connected to iOS devices - only entering text to InputFields is possible, navigation between different UI elements or clicking buttons doesn't work.

Steps to reproduce:
1) Open the attached project (1051178_repro.zip).
2) Build and run on an iOS device that supports Bluetooth keyboards (iPad or Apple TV).
3) Connect a Bluetooth keyboard (wireless mac keyboards work) to the device and make sure it works (⌘ + Spacebar should bring up search menu).
4) Focus on the InputField (touch it).
5) Type something in.
- It works as expected.
6) Press Enter on the keyboard to exit the InputField.
7) Press down arrow (should move focus to a button below).
8) Press Enter (should press the button and turn it red).

Expected: UI can be navigated using Bluetooth keyboards.
Actual: UI cannot be navigated using Bluetooth keyboards, only typing text into InputFields is possible.

Reproduced on:
2018.3.0a2, 2018.1.0f2

This issue does not reproduce on Android.

Devices tested:
iPad 5th gen iOS 10.3.3
LG G2 Android 5.0