Thanks for the link! I use nix-shell pretty often, I just wasn’t sure why nix-shell -p would be needed for applying the update.
Sadly It looks like the change wasn’t applied, nix --version is still 2.3.7, and the bug still exists.
Edit: @jonringer oh that’s your video! Haha I actually watched it when I was trying to learn nix-shell, thanks for making it!