[Bug] GlyphMarginWidget seems not working correctly in modifiedEditor

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.45.0#XQAAAAL_CAAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscxFFkJ8Zmn-4FNw7EJFXgGEG8BcQ_Fjg3kpvZbppnCzrIpn59Pt_K7bHHUFAytminI-rT7FODkiWGR_GOJXp0qJBskL81HIRliV0AzzE2LjzEUOKfuVt0Dyn-SzlP6OeT-5ewKRDQGED3pQ3mkKir1Hcogm6hwWgQb8-XQY5l16M7bbhfJeHTCoQT3jGerAeYadW2sBYxICpWaHCbFS7DQmeSJ0ZubV7tfq2qaiT2RsG9yjgG8x5lPRIEpz9k7e5oc-qQamNKk_k8YL2NoLG91XWO0qHf0fZPECLgCSBOI4jIN-qrqlbEgdyMWImzh1hpiLEEl0Po0-MxF44j3hb4NsRcC6h04KFVRBioNQkHN0dc91olhx4S2Uvy5FCYbaRESkp8nLzPTrIRnkzoQw231lmuvdAISJfQsE9cbdSQkclkKxEcfy92MCFVqg9SeVQInLT6PTul1-vTZq5vg04yL6FtJa2OEMWiPRXdRwvwOnrFqihZhB3soJuMn_7S1533ZdWqJg-0olxB9DrAUC21ZohHwc3T03Fc5ae7ece0ZxIokZ0tFF2-bvwdgCpCLQwb3OeDhfE8YLjifnyGDB__Kj2db5nDP2GShvWl5797MH_yUTElHhrnlxYkLRn6xQp6bKLEl0l9kwN9dWxVgE8ZvzqmuwQg14ibJpCPHLIOR6_lzdaPbgf3HwbWh39K8fF5my33szUL276GSYVRytTiZFyPbloAqsp4AI8HqjYPdPb-7synKzGTIkKzdieVXX4gZEXa1Ao3xSYKxXal8p0Vi1M1Q44nA9DgL70UdwcakdAUnWmvCRyQghf5h-pdNwdmjDoaFMsp_IsduJOehNHLMAgKWC1vuxpN0ES_l1Ba5fpGwUkt9nAM2t8XpUe7exh9YITgK_6NZEtLPeGRArwKkHiw6uwFCSwzWqkeSEiFdIFKUzDbzSh1vexQGpaf496nnpRkFCtuR8HYSnXIbELyoR4sEaLXrAa0xoyIZ-SW66LWe-vkDU6kzOsqvIVSVKFvSSIk5FPrZRp5NQ9VmII2Bq0Nh0Q1euiM7r5uWV_hqRURN_2GJDWHCNqJeZ5aL7rzRi4JMwhNm-b3_-wN5Zg

Monaco Editor Playground Code

const originalText = `
function binarySearch(arr, target) {
  let left = 0;
  let right = arr.length - 1;
  while (left <= right) {
    let mid = Math.floor((left + right) / 2);
    if (arr[mid] === target) {
      return mid;
    } else if (arr[mid] < target) {
      left = mid + 1;
    } else {
      right = mid - 1;
    }
  }
  return -1;
}
`

const modifiedText = `
function search(array, target) {
  let left = 0;
  let right = array.length - 1;
  while (left <= right) {
    let mid = Math.floor((left + right) / 2);
    if (array[mid] === target) {
      return mid;
    } else if (array[mid] < target) {
      left = mid + 1;
    } else {
      right = mid - 1;
    }
  }
  return -1;
}
`
function updateGlyphMargin(editor, isPosOriginal, lineNumber) {
	var glyphMarginWidget = {
		getId: function () {
			return isPosOriginal ? 'addCommentIconLeft' : 'addCommentIconRight';
		},
		getDomNode: function () {
			const domNode = document.createElement('div');
			domNode.innerHTML = '+';
			domNode.dataset.lineNumber = lineNumber.toString();
			domNode.title = 'add comment';
			return domNode;
		},
		getPosition: function () {
			console.log(lineNumber)
			return {
				lane: 1,
                                zIndex: 1,
                                range: new monaco.Range(lineNumber,1,lineNumber,1)
			};
		}
	};
	editor.removeGlyphMarginWidget(glyphMarginWidget);
	editor.addGlyphMarginWidget(glyphMarginWidget);
}


// Hover on each property to see its docs!
const newEditor = monaco.editor.createDiffEditor(document.getElementById("container"), {
	theme: 'vs-dark',
	automaticLayout: true,
	readOnly: true
});

newEditor.setModel({
	original: monaco.editor.createModel(originalText, 'javascript'),
	modified: monaco.editor.createModel(modifiedText, 'javascript')
});

const originalEditor = newEditor.getOriginalEditor();
const modifiedEditor = newEditor.getModifiedEditor();

originalEditor.onMouseMove((e) => {
	if (e.target.position?.lineNumber) {
		updateGlyphMargin(originalEditor,  true, e.target.position.lineNumber)
	}
});

modifiedEditor.onMouseMove((e) => {
	if (e.target.position?.lineNumber) {
		updateGlyphMargin(modifiedEditor, false, e.target.position.lineNumber)
	}
});

Reproduction Steps

just apply the code and try to hover on originalEditor and modifiedEditor, only originalEditor show glyphMarginWidget, modifedEditor got nothing.

Actual (Problematic) Behavior

The glyphMarginWidget works well in originalEditor but not working in modifiedEditor. With chrome developer tool, we can see that the glyphMarginWidget always got display: none

Expected Behavior

modifiedEditor should show glyphMarginWidget like originalEditor when hover event trigger.

Additional Context

No response

Start with the linked Monaco Editor Playground reproduction and compare the GlyphMarginWidget behavior in originalEditor and modifiedEditor, especially the addGlyphMarginWidget position returned by updateGlyphMargin. Confirm why the modified editor hides the widget, then verify that hovering modified-editor lines displays it like the original editor.