Incorrect imenu display for some Rust enums

[gcohara]

With the following example code:

pub enum MyEnum {
    First{
        hiya: usize
    },
    Second,
    Third,
}

fn main() {
    println!("Hello, world!");
}

mod foo {
    struct bar {
        hello: usize
    }
}

lsp-ui-imenu-mode looks like this:

I would expect the First variant to be below MyEnum, similar with bar and foo. Is it possible that imenu is struggling with double nested stuff?

I'm using lsp-ui version 8.0.0, Emacs 27.2, and rust-analyzer 2022-05-18 release