Editor not focused after CodeActionContextMenu is closed

[gins3000]

monaco-editor-core version: 0.13.1

Try this snippet in Monaco Playground:

monaco.languages.registerCodeActionProvider("plaintext", {
    provideCodeActions: function(model, range, context, token) {
        return [{ title: "do the quickfix, but lose focus" }]
    }
});

monaco.editor.create(document.getElementById("container"), {
    value: "use a quickfix on me",
    language: "plaintext",
    lightbulb: { enabled: true}
});

When closing the quickfix menu, the editor has lost focus.

I traced the issue back to this line[1], and patched in a _this._editor.focus() like in ContextMenuController and got it to work, but I'm not sure how this would affect vscode, since vscode does not suffer from the same issue.

[1] https://github.com/Microsoft/vscode/blob/10e51c91076560d53967aca43342d685aba2ec9c/src/vs/editor/contrib/codeAction/codeActionWidget.ts#L57