`tsc --watch` doesn't pick up on changes to `--jsx`

[DanielRosenwasser]

// ./tsconfig.json
{
 "compilerOptions": {
 "target": "esnext",
 "module": "commonjs",
 "noEmit": true,
 }
}

// ./src/index.tsx
declare var Foo: any;
let x = <Foo></Foo>;

[4:24:35 PM] Starting compilation in watch mode...

src/index.tsx:3:9 - error TS17004: Cannot use JSX unless the '--jsx' flag is provided.

3 let x = <Foo></Foo>;
 ~~~~~

[4:24:37 PM] Found 1 error. Watching for file changes.

Now add "jsx": "react", to the tsconfig.json.

 {
 "compilerOptions": {
+ "jsx": "react",
 "target": "esnext",
 "module": "commonjs",
 "noEmit": true,
 }
 }

Expected: Error should be gone.
Actual: Error is still present.

[xgqfrms]

any update?

still error

#56076

[jakebailey]

Hm, can you try the beta or nightly? I think this was fixed in #53403 and this issue is an accidental dupe of #53391.