Cmd+Q no longer works in this case (fixes #39191)

src/vs/code/electron-main/menus.ts

@@ -325,7 +325,13 @@ export class CodeMenu {
 		const hide = new MenuItem({ label: nls.localize('mHide', "Hide {0}", product.nameLong), role: 'hide', accelerator: 'Command+H' });
 		const hideOthers = new MenuItem({ label: nls.localize('mHideOthers', "Hide Others"), role: 'hideothers', accelerator: 'Command+Alt+H' });
 		const showAll = new MenuItem({ label: nls.localize('mShowAll', "Show All"), role: 'unhide' });
-		const quit = new MenuItem(this.likeAction('workbench.action.quit', { label: nls.localize('miQuit', "Quit {0}", product.nameLong), click: () => this.windowsMainService.quit() }));
+		const quit = new MenuItem(this.likeAction('workbench.action.quit', {
+			label: nls.localize('miQuit', "Quit {0}", product.nameLong), click: () => {
+				if (this.windowsMainService.getWindowCount() === 0 || !!this.windowsMainService.getFocusedWindow()) {
+					this.windowsMainService.quit(); // fix for https://github.com/Microsoft/vscode/issues/39191
+				}
+			}
+		}));
 
 		const actions = [about];
 		actions.push(...checkForUpdates);