Bug report

Current behavior

When a Menu has the defaultOpen prop, clicking a checkbox or radio item for the first time closes the Menu. This doesn't happen when the checkbox/radio item is activated using the keyboard, so this looks like a pointer only bug. It also doesn't happen when the Menu is closed and reopened. It only happens when clicking checkbox/radio items for the first time when defaultOpen is present.

The attached video showcases these scenarios:

1. ❌ Menu is defaultOpen: clicking checkbox/radio items closes the Menu.
2. ✅ Menu is defaultOpen but it's closed and reopen: clicking checkbox/radio items doesn't close the Menu.
3. ✅ Menu is defaultOpen but it's operated with keyboard: activating checkbox/radio items doesn't close the Menu.

Expected behavior

The Menu should stay open when clicking a checkbox or radio item for the first time when the defaultOpen prop is present.

Reproducible example

https://codesandbox.io/p/sandbox/proud-architecture-qv4gd4

Base UI version

1.0.0-alpha.4