[Regression] test.only with project dependency is not working on 1.37.0

[ortsevlised]

System info

• Playwright Version: [v1.37.0]
• Operating System: [macOS 13.5]
• Browser: [All]

Config file

// extract from playwright.config.ts
  projects: [
    {
      name: 'setup',
      testMatch: /global.setup\.ts/,
      use: {
        ...devices['Desktop Chrome'],
      },
    },
    {
      name: 'chromium',
      use: devices['Desktop Chrome'],
      dependencies: ['setup'],
    },
  ],

Steps

• Create a project dependency as shown in playwright.config.ts
• Add the 'only' annotation to a test (test.only)
• Run test

Expected

Test run as with previous version.

Actual

Test fails with the following error:
TypeError: Cannot read property '_hasTests' of undefined
When removing the dependency or the tag only tests run without issue.

[mxschmitt]

I can repro.

Most likely caused by #24268 (comment).

[MaksimZinovev]

Thanks for fixing this. Just came across this issue today. I thought I was doing something wrong🙂.
Turned out it was a bug.