Prompt rendering 2 times if prompt contains newline, when first starting nushell and pressing a key

[maxomatic458]

Describe the bug

i noticed this when using the starship prompt with nushell that has a similar config to this:

$env.PROMPT_INDICATOR = ""
$env.PROMPT_COMMAND = {|| ( echo "test\n>" )}

(the rest of my config is pretty much default)

now, when i open nushell and i press any key, the prompt will be rendered again

a very weird thing i noticed with windows terminal is that i can create a new tab, and then this will not happen (see clip).

How to reproduce

1. use the values above in config.nu
2. open nushell and type something
3. the prompt should be rendered 2 times

Expected behavior

the prompt should not be redrawn

Screenshots

https://github.com/nushell/nushell/assets/104733404/1dc2f73d-2986-4db4-b87d-7a166e95764a

Configuration

key	value
version	0.89.1
branch	main
commit_hash	9ee8d746588d848d841ed4e0dbcce8b8874a01d5
build_os	windows-x86_64
build_target	x86_64-pc-windows-msvc
rust_version	rustc 1.73.0 (cc66ad468 2023-10-03)
rust_channel	1.73.0-x86_64-pc-windows-msvc
cargo_version	cargo 1.73.0 (9c4383fb5 2023-08-26)
build_time	2024-01-21 14:03:27 +01:00
build_rust_channel	release
allocator	mimalloc
features	default, sqlite, trash, which, zip
installed_plugins

Additional context

No response

[fdncred]

it would be great to fix this double render.

[stephenstubbs]

I have the same issue.