Open Radar

 
Summary:
When a textfield or any other control is in the navigation bar's titleView VoiceOver will announce the control, if it was "discovered" when the navigation bar transitions to a hidden state from a visible state.

Steps to Reproduce:
Pre-step: Make sure that VoiceOver is enabled

1. Open and run attached sample app
2. Scroll down until navigation bar that holds a red textfield appears
3. Single tap on the textfield in the navigation bar so that VoiceOver announces it
4. Tap a visible cell underneath the navigation bar
5. Scroll as far as you can back up the page

Expected Results:
The textfield that is in the navigation bar should not be announced by VoiceOver since it is no longer displayed on screen.

Actual Results:
The textfield that is in the navigation bar is announced by VoiceOver when it is no longer displayed on screen.

Version:
9.2.1 (13D15)

Notes:
This is NOT in the code sample, but I have tried to manage state with VoiceOver when transitioning between states:
- Tried managing my accessibilityElements array by adding and removing the elements
- Flipping the state of isAccessibilityElement
- Flipping the state of accessibilityElementsHidden

Configuration:
iPhone 6+, 9.2 Simulator, iPhone 6