Is there an existing issue for this?

• I have searched the existing issues and my issue is unique
• My issue appears in the command-line and not only in the text editor

Description Overview

Repro

// eslint.config.js import eslintReact from 'eslint-plugin-react'; import eslintReactRecommended from 'eslint-plugin-react/configs/recommended.js'; export default [ { plugins: { react: eslintReact, }, }, eslintReactRecommended, ];

npx eslint eslint.config.js

Expected

No errors

Actual

Oops! Something went wrong! :( ESLint: 8.56.0 Error: Key "plugins": Cannot redefine plugin "react". 

More Info

When defining a plugin key in the flat config ESLint enforces that you only ever redefine they key with the same plugin. This check is done by comparing by reference -- i.e. configA.plugin.react === configB.plugin.react

eslint-plugin-react fails this check because it defines its "plugin" in two locations:

For this to work there needs to be exactly 1 copy of the "plugin" defined by the package.
For example:

const plugin = { ... }; plugin.configs = { recommended: { plugins: { react: plugin }, rules: { ... }, }, all: { plugins: { react: plugin }, rules: { ... }, }, });

eslint-plugin-react version

v7.33.2

eslint version

v8.56.0

node version

v20.11.0