accessibilityRole="form" does not preserve `onSubmit` handler

[paularmstrong]

The problem
Using accessibilityRole="form" with onSubmit={someHandler}, someHandler is not called when hitting the return key in a nested TextInput.

How to reproduce
Simplified test case: https://codesandbox.io/s/6y37n189kn

Steps to reproduce:

1. Go to the codesanbox link
2. Type in the input field
3. Hit your enter/return key to submit the form

Expected behavior
Expectation is that the onSubmit handler is called and the event is prevented.

Actual behavior
The page is submitted and reloaded.

Environment (include versions). Did this work in previous versions?

• React Native for Web (version): v0.8.8
• React (version): any
• Browser: any
• Previously worked in v0.5.x, v0.6.x, and v0.7.x: https://codesandbox.io/s/x9kv8xl8l4

[necolas]

As we discussed elsewhere, the callback is not supported following the tightening of the API to align with RN in 0.8. You can achieve the desired result by using the onSubmitEditing prop on TextInput

[necolas]

Maybe the library should call preventDefault internally to avoid the unexpected behaviour within a form, or use aria instead of a form element