Variable not captured correctly

[kubouch]

Describe the bug

It seems like in some tricky cases the variables are not captured correctly.

How to reproduce

Create a .nu-env file with the following contents:

def-env hook-shell [n: string] {
    let-env config = ($env.config | upsert hooks.env_change.NUSHELL_CURRENT_SHELL {
        [
            { let-env FOO = $n }
        ]
    })
}

hook-shell $env.NUSHELL_CURRENT_SHELL

Then:

> $env.NUSHELL_CURRENT_SHELL = 'foo'
> source .nu-env
Error: nu::shell::variable_not_found (link)

  × Variable not found
   ╭─[.nu-env:3:1]
 3 │         [
 4 │             { let-env FOO = $n }
   ·                             ─┬
   ·                              ╰── variable not found
 5 │         ]
   ╰────

Expected behavior

I would expect the $n variable to be captured from the argument of hook-shell and equal to the $env.NUSHELL_CURRENT_SHELL.

Screenshots

No response

Configuration

key	value
version	0.65.1
branch	hooks_string
commit_hash	eac5f62
build_os	linux-x86_64
build_target	x86_64-unknown-linux-gnu
rust_version	rustc 1.62.0 (a8314ef7d 2022-06-27)
rust_channel	stable-x86_64-unknown-linux-gnu
cargo_version	cargo 1.62.0 (a748cf5a3 2022-06-08)
pkg_version	0.65.1
build_time	2022-07-07 20:10:14 +03:00
build_rust_channel	release
features	database, dataframe, default, trash, which, zip
installed_plugins	gstat

Additional context

No response

[kubouch]

Oh, oops, this is not meant to be closed. The error might be in the parser collecting the captures, I'm not sure.