src/vs/platform/actions/browser/menuEntryActionViewItem.ts/SubmenuEntrySelectActionViewItem/runAction
class SubmenuEntrySelectActionViewItem:	protected override runAction(option: string, index: number): void {
		const action = (this.action as SubmenuItemAction).actions[index];
		if (action) {
			this.actionRunner.run(action);
		}
	}