Autocomplete or ActionList throws error: Cannot use 'in' operator to search for '__self' in false

[Mizan-Rifat]

Description

🐛 Bug Report

When using the Autocomplete or ActionList components from @primer/react, I get the following error:

Unexpected Application Error!
Cannot use 'in' operator to search for '__self' in false

Environment information

@primer/react: 37.18.0

react: 19.0.0

react-dom: 19.0.0

Steps to reproduce

Install @primer/react@^37.18.0

Use Autocomplete or ActionList component with minimal setup

Run the app with react@19.0.0

Observe the error in the browser

Version

37.18.0

Browser

Chrome