Escape key not detected the first time

[CyanideForBreakfast]

On fetching input, Escape key event doesn't seem to be detected the first time. It takes two key-presses to detect Escape key for the first time after which it is detected at each key press.

Reproducible example -

use libnotcurses_sys::{widgets::*, *};
use env_logger;
use log::info;
use nix::poll::{ poll, PollFd, PollFlags };

fn main() -> NcResult<()> {
    env_logger::init();
    reader()
}

fn reader() -> NcResult<()> {
    let mut nc = unsafe { Nc::new()? };
    let mut stp = unsafe { nc.stdplane() };
    
    let input_fd = PollFd::new(
        unsafe { c_api::notcurses_inputready_fd(nc as *mut Nc) },
        PollFlags::POLLIN);

    let mut input_details = NcInput::new_empty();
    loop {
        if let Ok(_) = poll(&mut [input_fd], -1) {
            let recorded_input = nc.get_nblock(Some(&mut input_details))?;
            info!("Recieved {:?} {:?}", recorded_input, input_details);
        }
    }

    unsafe { nc.stop()? };
    Ok(())
}

Viewing the logs RUST_LOG=trace cargo run would reveal that each other keyboard input (characters, Tab etc) is detected on one key-press, only Escape key takes two.

The behavior is the same if I don't use polling and simply loop delayed get(). My Escape key appears to be registering perfectly for other applications so I doubt it is the issue.

Terminals - Alacritty, XTerm.

Please confirm this if this behavior is reproducible and is a bug.

[joseluis]

I can confirm this is happening for me too with the notcurses-input C app, therefore I recommend opening an issue in the main notcurses repo.

[dankamongmen]

i'll go ahead and make one, thanks!

[dankamongmen]

This is not happening for me in Kitty, fwiw. About to attempt verification with alacritty/XTerm.

[dankamongmen]

confirmed in alacritty/xterm. further work will take place in dankamongmen/notcurses#2646. Thanks for the report!

[dankamongmen]

i've fixed this upstream, to the best of my testing, and will cut 3.0.8 within the next few days including this fix. hack on everybody

[dankamongmen]

dankamongmen/notcurses#2648