Aplications freeze when pasting from cli_clipboard

[Paradyx]

I experience issues with wormhole-rs that uses cli_clipboard under the hood. When i try pasting to a third application (Signal Desktop, cutsel) they freeze for some time or fail entirely. I think cli-clipoard is at fault because I never experience freezes when copying from other sources. Pasting to Firefox and Libre Office Writer works for some reasons.

Steps to reproduce:

I implemented a little demo with cli-clipboard = "0.4" to eliminate other factors.

use std::io::prelude::*;
use std::io::stdin;
use std::io::stdout;

use cli_clipboard::{ClipboardContext, ClipboardProvider};

fn main() {
    let mut ctx = ClipboardContext::new().unwrap();
    let the_string = "Hello, world!";
    ctx.set_contents(the_string.to_owned()).unwrap();

    // Keep application running until any key is pressed.
    write!(stdout(), "Press any key to continue...").unwrap();
    stdout().flush().unwrap();
    let _ = stdin().read(&mut [0u8]).unwrap();
}

With Signal Desktop:

1. On the demo cargo run
2. Ctrl+V in Signal Desktop
   -> Signal Desktop freezes for a couple of seconds and successfully pasts the text afterwards.

With cutsel

1. On the demo cargo run
2. In another terminal cutsel -v -d -s CLIPBOARD sel
   -> crashes with the following output

$ cutsel -v -d -s CLIPBOARD sel
cutsel v0.10.1
X Error of failed request:  BadAtom (invalid Atom parameter)
  Major opcode of failed request:  17 (X_GetAtomName)
  Atom id in failed request:  0x80000001
  Serial number of failed request:  22
  Current serial number in output stream:  22

Other information

I'm running an up-to-date Archlinux with i3-wm. FWI, a couple installed packages that might be of importance.

i3-wm 4.22-3
xorg-server 21.1.7-1
xclip 0.13-3
signal-desktop 6.5.1-1

Please let me know if you need any additional information.

[allie-wake-up]

I don't have time to try it out right this second, but I'm hoping this upstream fix will fix this: quininer/x11-clipboard#34