High CPU usage if app doesn't have any windows

[Exidex]

Is your issue REALLY a bug?

• My issue is indeed a bug!
• I am not crazy! I will not fill out this form just to ask a question or request a feature. Pinky promise.

Is there an existing issue for this?

• I have searched the existing issues.

Is this issue related to iced?

• My hardware is compatible and my graphics drivers are up-to-date.

What happened?

Using following code, after closing window, CPU shoots up to 95%. Doesn't happen every time. Tested macOS and Linux

use iced::widget::text_input;
use iced::window;
use iced::{Element, Task};

fn main() -> iced::Result {
    iced::daemon("High CPU", Example::update, Example::view)
        .run_with(Example::new)
}

struct Example;

#[derive(Debug, Clone)]
enum Message {
    WindowOpened(window::Id),
}

impl Example {
    fn new() -> (Self, Task<Message>) {
        let (_id, open) = window::open(window::Settings::default());

        (
            Self,
            open.map(Message::WindowOpened),
        )
    }

    fn update(&mut self, message: Message) -> Task<Message> {
        match message {
            Message::WindowOpened(id) => {
                text_input::focus(format!("input-{id}"))
            }
        }
    }

    fn view(&self, window_id: window::Id) -> Element<Message> {
        text_input("Input", "Value")
            .id(format!("input-{window_id}"))
            .into()
    }
}

On macOS I tracked it down to os creating a lot of kCFRunLoopAfterWaiting events here and the app is getting a spammed with following events

NewEvents(ResumeTimeReached { start: Instant { tv_sec: 1936325, tv_nsec: 582125083 }, requested_resume: Instant { tv_sec: 1936321, tv_nsec: 90415500 } })
NewEvents(ResumeTimeReached { start: Instant { tv_sec: 1936325, tv_nsec: 582146958 }, requested_resume: Instant { tv_sec: 1936321, tv_nsec: 90415500 } })
NewEvents(ResumeTimeReached { start: Instant { tv_sec: 1936325, tv_nsec: 582169166 }, requested_resume: Instant { tv_sec: 1936321, tv_nsec: 90415500 } })
NewEvents(ResumeTimeReached { start: Instant { tv_sec: 1936325, tv_nsec: 582355291 }, requested_resume: Instant { tv_sec: 1936321, tv_nsec: 90415500 } })

It seems to be happening on both released 0.13 and master branch

What is the expected behavior?

CPU usage stays close to 0%

Version

master

Operating System

macOS and Linux

Do you have any log output?

No response