Copy-to-clipboard not working on XFCE on Ubuntu 22.10

[alexanderkjall]

My project recently tried switching from https://crates.io/crates/clipboard to https://crates.io/crates/cli-clipboard and both of them use the x11-clipboard crate.

The problem I see is that the set_content() function doesn't work on x11, this method: https://docs.rs/cli-clipboard/0.4.0/src/cli_clipboard/lib.rs.html#141-145

I did a bisect, and that gave this result:

267572e1a95fa59e3f326abd1269a3ba909a0254 is the first bad commit
commit 267572e1a95fa59e3f326abd1269a3ba909a0254
Author: quininer <[email protected]>
Date:   Tue May 18 23:56:38 2021 +0800

    Fix window leak

 src/run.rs           | 14 ++++++++++----
 tests/window-leak.rs | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 4 deletions(-)
 create mode 100644 tests/window-leak.rs

I tried looking at the code for that, but since I'm not familiar with the domain I didn't really see anything.