react-scripts version 4.0.0-next.96 extends eslint rules by default

[andrei9669]

Describe the bug

Starting from version 4.0.0-next.96 my custom eslint rules are extended automatically into my react app. It works fine on version 4.0.0-next.77.

Did you try recovering your dependencies?

npm version 6.14.8

Which terms did you search for in User Guide?

• Advanced Configuration
• EXTEND_ESLINT

Environment

current version of create-react-app: 3.4.1
running from /home/andreisirotin/.npm/_npx/38194/lib/node_modules/create-react-app

System:
OS: Linux 5.4 Ubuntu 20.04.1 LTS (Focal Fossa)
CPU: (8) x64 Intel(R) Core(TM) i7-8559U CPU @ 2.70GHz
Binaries:
Node: 10.19.0 - /usr/bin/node
Yarn: 1.22.5 - /usr/bin/yarn
npm: 6.14.8 - ~/Documents/3admin/admin-panel/node_modules/.bin/npm
Browsers:
Chrome: 85.0.4183.83
Firefox: 81.0
npmPackages:
react: ^16.13.1 => 16.13.1
react-dom: ^16.13.1 => 16.13.1
react-scripts: 4.0.0-next.77 => 4.0.0-next.77
npmGlobalPackages:
create-react-app: Not Found

Steps to reproduce

1. npx create-react-app project
2. cd project
3. npm i react-scripts@4.0.0-next.98
4. npx eslint --init

✔ How would you like to use ESLint? · style
✔ What type of modules does your project use? · esm
✔ Which framework does your project use? · react
✔ Does your project use TypeScript? · No / Yes
✔ Where does your code run? · browser
✔ How would you like to define a style for your project? · guide
✔ Which style guide do you want to follow? · airbnb
✔ What format do you want your config file to be in? · JavaScript

5. npm run start

Expected behavior

I expected it to work like it used to

Actual behavior

It works as if I have EXTEND_ESLINT=true in my .env file, which doesn't allow it to run cus I have some half finished code.

Reproducible demo

https://github.com/andrei9669/react_scripts_next

[andrei9669]

probably related to #9683 but not quite sure

[stale]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.