Unexpected behavior after List item retrieval

[ennisj9]

Only workaround I found was looping through list - weird things happen when list_get_unsafe() is called twice.

On the zig compiler:

Minimum Reproduction

app [main!] { pf: platform "https://github.com/lukewilliamboswell/roc-platform-template-zig/releases/download/0.6/2BfGn4M9uWJNhDVeMghGeXNVDFijMfPsmmVeo6M4QjKX.tar.zst" }

import pf.Stdout

main! = |_args| {
    list = ["foo","bar"]
    foo = list.first().ok_or("")
    bar = list.last().ok_or("")
    Stdout.line!(foo.concat(bar))
    Ok({})
}

Result

Roc crashed: Str does not implement last

Expected behavior

foobar