Nx affected command doesn't ignore test files

[AndreiRosu]

Current Behavior

After modifying only a .spec.ts file, the nx affected -t build command, returns the following:

 NX   Affected criteria defaulted to --base=main --head=HEAD

   ✔  nx run inventory:build:production  [local cache]
   ✔  nx run angular-monorepo:build:production  [local cache]

 NX   Successfully ran target build for 2 projects

Expected Behavior

No project should be affected (nx.json is configured to ignore .spec.ts files, as in: !{projectRoot}/**/?(*.)+(spec|test).[jt]s?(x)?(.snap)).

GitHub Repo

https://github.com/AndreiRosu/angular-monorepo

Steps to Reproduce

1. Clone the default angular-monorepo repository from https://github.com/AndreiRosu/angular-monorepo (It is exactly the same as in tutorial: https://nx.dev/getting-started/tutorials/angular-monorepo-tutorial).
   Another option is to use it directly in stackblitz: https://stackblitz.com/~/github.com/AndreiRosu/angular-monorepo
2. Modify libs/products/src/lib/products/products.component.spec.ts (Add a console.log in the test)
3. Run command nx affected -t build

Nx Report

Node           : 21.7.3
OS             : darwin-arm64
Native Target  : aarch64-macos
npm            : 10.9.0

nx                     : 20.4.6
@nx/js                 : 20.4.6
@nx/jest               : 20.4.6
@nx/eslint             : 20.4.6
@nx/workspace          : 20.4.6
@nx/angular            : 20.4.6
@nx/devkit             : 20.4.6
@nx/eslint-plugin      : 20.4.6
@nx/module-federation  : 20.4.6
@nx/playwright         : 20.4.6
@nx/web                : 20.4.6
@nx/webpack            : 20.4.6
typescript             : 5.7.3
---------------------------------------
Registered Plugins:
@nx/playwright/plugin
@nx/eslint/plugin
---------------------------------------
Community plugins:
angular-eslint : 19.1.0

Failure Logs

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

Running nx show projects --affected --target=build returns a different result than nx affected -t build:

products
angular-monorepo
angular-monorepo-e2e
inventory
inventory-e2e