Suspending the buffer editor causes nushell to hang

[Juhan280]

Bug report form

• I have done a basic search of the issue tracker to find any existing issues that are similar.
• I have checked that my version is at least the latest stable release available via my installation method.

Describe the bug

When we open a buffer editor using ctrl+o, and then suspend the editor. Result: nushell also gets suspended.

How to reproduce

I don't know how to reproduce with other editors, but for vim/nvim there is the steps:

> $env.config.buffer_editor = 'vim' # set editor to vim
> blabla # type something
         # run ctrl+o to open buffer editor
         # run ctrl+z to suspend the editor

Expected behavior

I expect nu to not get suspended with the buffer editor as well. Only the editor should be suspended.

Configuration

key	value
version	0.112.2
major	0
minor	112
patch	2
branch
commit_hash	4ad14b36e565a58adb883ed603fa82bc5cb49389
build_os	linux-x86_64
build_target	x86_64-unknown-linux-gnu
rust_version	rustc 1.92.0 (ded5c06cf 2025-12-08)
rust_channel	1.92.0-x86_64-unknown-linux-gnu
cargo_version	cargo 1.92.0 (344c4567c 2025-10-21)
build_time	2026-04-13 13:19:47 +06:00
build_rust_channel	release
allocator	standard
features	network, plugin, rustls-tls, sqlite, trash-support
installed_plugins
experimental_options	example=false, reorder-cell-paths=true, pipefail=true, enforce-runtime-annotations=false, native-clip=false, cell-path-types=false

[Juhan280]

I think I should have opened this issue in the reedline repo

[weirdan]

@Juhan280 what do you expect to happen in the following cases:

1. Editing the command line:
   1.1. You start the buffer editor (Ctrl+O)
   1.2. You suspend it with Ctrl+Z
   1.3. Nushell becomes interactive and you edit the command line in the REPL
   1.4. You unsuspend the editor with a keybind (I use the same Ctrl+Z)
   1.5. Now there are two versions of the command line (one in the readline buffer that you edited when the editor was suspended and another one in the editor buffer). How do we resolve this situation?

2. Executing the command while the editor is suspended
   2.1. You start the buffer editor
   2.2. You suspend it with Ctrl+Z
   2.3. You execute the command that is in reedline buffer
   2.4. You unsuspend the editor
   2.5. Now in the editor buffer you have a command that was already executed. How do we resolve this?

[Juhan280]

As long as reedline itself doesn't get suspended, its fine for me. I wouldn't mind if we completely ignore what editor says once its suspended.

Maybe, once we resume the editor, and save and exit the file, we get the commandline from the editor. And if we don't save and exit the editor we use the current commandline. Honestly I don't know.