[select] Page scrolls when opening with Space key

[mirka]

Bug report

Current behavior

When I trigger a Select open with the Space key, the page scrolls.

Expected behavior

The page shouldn't scroll.

Reproducible example

Official example in docs.

CleanShot.2025-07-21.at.22-41-15.mp4

Base UI version

1.0.0-beta.1

Which browser are you using?

Reproduces in all three major browsers.

Which OS are you using?

Mac OS

Which assistive tech are you using (if applicable)?

None

[atomiks]

Was fixed in #2295 but unreleased. Will keep this open until beta.2 goes out.