Version 7.42.0 breaking compilation

[aTurmo]

Hello everyone !

I have a very weird problem with version 7.42.0 : it breaks my project typescript compilation.

What I mean is that if I put something that should not compile like for example :

const toto = (truc: { tata: string}) => `afaadfdfggdfgaaa${truc.boo}`
const tata: number = toto(123)
console.log(tata)

I get no errors when running the app (react-scripts start)

But with version 7.41.5, I get (among other related errors) :

TS2339: Property 'boo' does not exist on type '{ tata: string; }'.
    26 |
    27 | export const EventListTable = () => {
>   28 |   const toto = (truc: { tata: string}) => `afaadfdfggdfgaaa${truc.boo}`
       |                                                                   ^^^
    29 |   const tata: number = toto(123)
    30 |   console.log(tata)

as expected.

I really don't understand what is happening here, I never got something like that before.

Does someone has any idea of what's happening ?

Here are my dependencies :

"dependencies": {
  "@azure/msal-browser": "^3.9.0",
  "@azure/msal-react": "^2.0.11",
  "@reduxjs/toolkit": "^1.9.5",
  "@testing-library/jest-dom": "^6.1.4",
  "@testing-library/react": "^16.0.0",
  "@testing-library/user-event": "^14.5.1",
  "@types/jest": "^29.5.6",
  "@types/node": "^20.8.7",
  "@types/react": "^18.2.31",
  "@types/react-dom": "^18.2.14",
  "bootstrap": "^5.3.1",
  "clsx": "^2.0.0",
  "dayjs": "^1.11.9",
  "http-proxy-middleware": "^2.0.6",
  "i18next": "^23.4.4",
  "i18next-browser-languagedetector": "^7.1.0",
  "i18next-http-backend": "^2.2.1",
  "react": "^18.3.1",
  "react-bootstrap": "^2.9.1",
  "react-calendar": "^4.6.1",
  "react-datetime-picker": "^5.5.3",
  "react-dom": "^18.3.0",
  "react-hook-form": "7.41.5",
  "react-i18next": "^13.1.1",
  "react-redux": "^8.1.1",
  "react-router-dom": "^6.14.2",
  "react-scripts": "^5.0.1",
  "redux": "^4.2.1",
  "sass": "^1.64.1",
  "typescript": "^4.9.5",
  "web-vitals": "^2.1.4"
},
"devDependencies": {
  "eslint": "^8.51.0",
  "eslint-config-airbnb": "^19.0.4",
  "eslint-plugin-import": "^2.28.1",
  "eslint-plugin-jsx-a11y": "^6.7.1",
  "eslint-plugin-react": "^7.33.2",
  "jest": "^29.7.0",
  "jest-canvas-mock": "^2.5.2",
  "jest-expect-message": "^1.1.3",
  "jest-junit": "^12.3.0",
  "mockdate": "^3.0.5"
}

and the tsconfig.json

{
  "compilerOptions": {
    "target": "es6",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react-jsx",
    "baseUrl": "src"
  },
  "include": [
    "src"
  ]
}