Snapshot detection still not working in Vitest 3.0

[ffMathy]

Describe the bug

In issue #527 (comment), @hi-ogawa kindly provided an example of some code that should be possible in Vitest 2.2 and higher. Since 3.0 is the new 2.2, I thought this would apply as well.

Reproduction

Use the following global setup file:

import type { SnapshotUpdateState } from 'vitest';
import type { TestProject } from 'vitest/node';

export default function setup(ctx: TestProject) {
  ctx.provide(
    'config:updateSnapshot',
    ctx.serializedConfig.snapshotOptions.updateSnapshot
  );
  ctx.onTestsRerun(() => {
    ctx.provide(
      'config:updateSnapshot',
      ctx.serializedConfig.snapshotOptions.updateSnapshot
    );
  });
}

declare module 'vitest' {
  export interface ProvidedContext {
    'config:updateSnapshot': SnapshotUpdateState;
  }
}

Now run your test. If you run vitest --update from the command-line, it properly provides the value "all". If you run vitest from the command-line, it properly provides the value "new".

But if you run "Update snapshot" from VS Code (by right-clicking on a test), it always provides the value "new". So something is causing it to not display the correct value ("all").

Output

N/A for this type of issue.

Extension Version

1.10.3

Vitest Version

vitest/3.0.0 linux-arm64 node-v23.5.0

Validations

• Check that you are using the latest version of the extension
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.