test.scoped() does not cascade to child suites

[limulus]

Describe the bug

Using the new test.scoped() method only seems to work for the current suite and not any child suites.

The docs seem to indicate that this test should pass, but it fails:

const extendedTest = test.extend<{ foo: boolean }>({
  foo: false,
});

describe('top level', () => {
  extendedTest.scoped({ foo: true });

  describe('second level', () => {
    extendedTest('foo is true', ({ foo }) => {
      expect(foo).toBe(true);
    });
  });
});

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-fedbxgs5?file=test%2Fsuite.test.ts

System Info

System:
    OS: macOS 15.3.2
    CPU: (10) arm64 Apple M1 Pro
    Memory: 108.75 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/Library/NodeJS/bin/node
    Yarn: 1.22.19 - ~/Library/NodeJS/bin/yarn
    npm: 10.9.2 - ~/Library/NodeJS/bin/npm
  Browsers:
    Chrome: 134.0.6998.166
    Edge: 134.0.3124.95
    Safari: 18.3.1
  npmPackages:
    @vitest/coverage-v8: ^3.1.1 => 3.1.1 
    vitest: ^3.1.1 => 3.1.1

Used Package Manager

npm

Validations

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• Read the Contributing Guidelines.
• Read the docs.
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• The provided reproduction is a minimal reproducible example of the bug.

[sheremet-va]

Hm, seems like there is a bug where it needs to have a least one test that uses this value in the same suite:

import { describe, expect, test } from 'vitest';

const extendedTest = test.extend<{ foo: boolean }>({
  foo: false,
});

describe('top level', () => {
  extendedTest.scoped({ foo: true });

  // now nested test is correct
  extendedTest('foo is true', ({ foo }) => {
    expect(foo).toBe(true);
  });

  describe('second level', () => {
    extendedTest('foo is true', ({ foo }) => {
      expect(foo).toBe(true);
    });
  });
});