Setting margin=1 strips all vertical spacing

[asakura]

When margin is 1, nufmt removes all empty lines between top-level statements.

Minimal reproducer

use a.nu

def foo[] {1}


def boo[] {2}

Output:

use a.nu
def foo[] {1}
def boo[] {2}

Expected:

use a.nu

def foo[] {1}

def boo[] {2}

Environment

nushell 0.111.0
nufmt 7c5aead0ee254232b78606fa49946fecdcc89c76 and 3982173ee09e562ca2e74068355ae8d858d5e4bf
rustc 1.93.0 (254b59607 2026-01-19) (built from a source tarball)

nufmt.nuon:

{
    indent: 2
    line_length: 80
    margin: 1
}

[fdncred]

Please update any issues with what you have plus Expected output

[asakura]

Sure, no problem!

[fdncred]

Thanks. Test with the latest main branch too please.

[asakura]

55df6a6 - still strips all vertical spacing