TextField (and others) - Error messages not read w/ NVDA/JAWS after another keypress

# 🐛 Bug Report

When an error message is triggered on a textField if there is a 2nd keypress after the message appears then the reading of the message is suppressed with JAWS and NVDA

## 🤔 Expected Behavior

The error message should be read to the user.

## 😯 Current Behavior

The user doesn't currently hear the message

## 💁 Possible Solution

## 🔦 Context

## 💻 Code Sample

https://codesandbox.io/s/errormessages-9skph5

Run the testcase and type "test" into the field. Note that JAWS/NVDA so not report an error to the user
Run the testcase again but this time just type "t" into the field. Note that the error is correctly reported here.

## 🌍 Your Environment

| Software | Version(s) |
| ---------------- | ---------- |
| react-spectrum | 3
| Browser | Chrome/FF w/ NVDA or JAWS
| Operating System | Windows

## 🧢 Your Company/Team

## 🕷 Tracking Issue (optional)