Change Missing From Changelog: forEach() Loop's `Return` returns to forEach()'s invocation point, not to the calling function.

Hey all,

I'm noticing that in upgrading to ReactJS Version 16.12.0 from 16.7.0, the behavior of foreach was changed, so that return returns to where foreach is called, and not the function calling the function containing the foreach. But I don't see this change here:

https://github.com/facebook/react/blob/master/CHANGELOG.md

Basically,

function1() {
	function2();
	console.log("function 1");
}

function2() {
	const arr = ['cool'];
	arr.forEach((var) => {
		return var;
	});
	console.log("function 2");
}

Before 16.12.0, console output was: "function 1", but now it is "function 2; function 1." This change appears to be against MDN documentation and internet consensus: https://stackoverflow.com/questions/34653612/what-does-return-keyword-mean-inside-foreach-function

But it should have been included in the changelog, though I am not seeing it. Let me know if I'm misunderstanding.

Comienza con CHANGELOG.md y la entrada del changelog de React 16.12.0 mencionada en el issue. Verifica el comportamiento reportado de forEach() con las referencias enlazadas de MDN y Stack Overflow, y determina después si falta una entrada en el changelog; se considera terminado cuando el informe está validado y el changelog refleja correctamente la publicación, si corresponde.