[Bug]: ComboBox | Narrator reads the currently selected value twice

[samuelpf]

Package

react

Package version

^8.118.8

React version

^18.3.1

Environment

System:
    OS: Windows 11 10.0.26200
    CPU: (32) x64 AMD Ryzen Threadripper PRO 3955WX 16-Cores
    Memory: 86.29 GB / 127.86 GB
  Browsers:
    Chrome: 145.0.7632.160
    Edge: Chromium (140.0.3485.94)
    Firefox: 148.0 - C:\Program Files\Mozilla Firefox\firefox.exe
    Internet Explorer: 11.0.26100.7309

Current Behavior

When selecting a Combobox while Narrator is active, Narrator will sometimes read the currently selected value twice. (When selecting it for the first time, Narrator might read the value once. But for any subsequent selections, it reads the value twice).

Expected Behavior

Narrator should only read the current value once.

Reproduction

https://codepen.io/sampf8/pen/MYjbwLX

Steps to reproduce

1. Turn Narrator on and navigate to the first combo box in the Codepen example (the one with "Option C").
2. The first time the combo box is selected, Narrator might only read "Option C selected" once (as expected).
3. Navigate to the "Open first Combobox" button (or any other element in the page for that matter).
4. Navigate back to the "Option C" combo box. This time, Narrator will read "... collapsed... Option C selected, Option C selected".
5. I tried in Fluent V9 and was able to repro the issue as well.

Are you reporting an Accessibility issue?

yes

Suggested severity

High - No workaround

Products/sites affected

Calendar in Outlook and Teams

Are you willing to submit a PR to fix?

no

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.