Applying \r\n as two seperate edits causes the editor to render 2 new lines instead of 1

[Place1]

Hey, I think i've run into a bug with how monaco handles CR LF characters. If you use the below script in the monaco playground you can see that applying \r\n as two separate edits causes the editor to display 2 lines rather than 1. If you apply \r\n in a single edit then this isn't a problem.

monaco-editor version: playground
Browser: firefox
OS: windows 10

Steps or JS usage snippet reproducing the issue:

var editor = monaco.editor.create(document.getElementById("container"), {
	value: "hello",
	language: "javascript"
});

editor.getModel().applyEdits([
    {
        text: '\r',
        range: new monaco.Range(1, 1, 1, 1),
    },
]);

editor.getModel().applyEdits([
    {
        text: '\n',
        range: new monaco.Range(1, 2, 1, 2),
    },
]);

console.log(JSON.stringify(editor.getModel().getValue()))

[alexdima]

This is as designed. By design, we do not allow a file to be in a mixed line ending situation. Therefore, if the model is configured to have \r\n\ as EOL sequence, when you insert \r, it will be "fixed" to \r\n. Also, when you insert \n, it will be "fixed" to \n.

There are some people who would still want mixed line endings in their files 🤷‍♂ ... Let's track that at microsoft/vscode#127