Project filter is includes shared tests across projects

[unional]

Describe the bug

I tried to use workspace on a single package that contains both server side and client side code, as well as code that can run on both environments.
I created one Vitest project config for each platform.

When filtering tests using project filter in watch mode, it run the shared tests on both projects instead of the project that I tried to filter.

src
  client
  server
  shared
vitest.config.browser.ts # run tests in `client` and `shared` folder
vitest.config.node.ts # run tests is `server` and `shared` folder
vitest.workspace.ts

vitest run --project=node is working correctly.
This issue only occurs in watch mode.

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-project-filter-issue

press w and enter node to filter the node project.

you will observe |browser| src/shared/some.test.ts is also executed.

System Info

System:
    OS: Linux 5.15 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 25.32 GB / 31.30 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 20.18.0 - /run/user/1000/fnm_multishells/56615_1735161007494/bin/node
    npm: 10.8.2 - /run/user/1000/fnm_multishells/56615_1735161007494/bin/npm
    pnpm: 9.12.2 - /run/user/1000/fnm_multishells/56615_1735161007494/bin/pnpm
  npmPackages:
    @vitest/coverage-v8: ^2.1.8 => 2.1.8 
    vitest: ^2.1.8 => 2.1.8

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• 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.