[Bug] ModelMarker hover widget does not always render full size on first hover

Start with the linked Monaco Editor Playground example on version 0.45.0 and reproduce the first-hover behavior using the supplied marker code. Done means the initial hover displays the full “View Problem (alt+F8)” text, matching subsequent hovers; no code location or test is named in the issue.

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#example-extending-language-services-model-markers-example

Monaco Editor Playground Code

function validate(model) {
	const markers = [];
	// lines start at 1
	for (let i = 1; i < model.getLineCount() + 1; i++) {
		const range = {
			startLineNumber: i,
			startColumn: 1,
			endLineNumber: i,
			endColumn: model.getLineLength(i) + 1,
		};
		const content = model.getValueInRange(range).trim();
		const number = Number(content);
		if (Number.isNaN(number)) {
			markers.push({
				message: "not a number",
				severity: monaco.MarkerSeverity.Error,
				startLineNumber: range.startLineNumber,
				startColumn: range.startColumn,
				endLineNumber: range.endLineNumber,
				endColumn: range.endColumn,
			});
		} else if (!Number.isInteger(number)) {
			markers.push({
				message: "not an integer",
				severity: monaco.MarkerSeverity.Warning,
				startLineNumber: range.startLineNumber,
				startColumn: range.startColumn,
				endLineNumber: range.endLineNumber,
				endColumn: range.endColumn,
			});
		}
	}
	monaco.editor.setModelMarkers(model, "owner", markers);
}

const value = `12345
abcd
234.56
12345
abcd
234.56`;
const uri = monaco.Uri.parse("inmemory://test");
const model = monaco.editor.createModel(value, "demoLanguage", uri);
const editor = monaco.editor.create(document.getElementById("container"), {
	model,
});
validate(model);
model.onDidChangeContent(() => {
	validate(model);
});

Reproduction Steps

Hover over the initial problem (one of the errors), and it displays "View"

re-hover over it, and it will change to "View Problem (alt+F8)"

I am using 0.45.0

Actual (Problematic) Behavior

Should always show the hotkey and the full text of the marker.

Expected Behavior

On the first hover, the editor should fully display the "View Problem (alt+F8)" text.

If there is some method I can call to force it into the latter as I create markers, that would be acceptable (I tried editor.layout() thinking the editor needed to re-configure itself a bit or something, but that did not seem to work).

Additional Context

Initial render display:

Subsequent render display: