auto-import sometimes breaks with `self` imports

[edwloef]

rust-analyzer version: 1.90.0 (1159e78 2025-09-14), 1.92.0-nightly (5c7ae0c 2025-10-02)

rustc version: 1.90.0 (1159e78c4 2025-09-14), 1.92.0-nightly (5c7ae0c7e 2025-10-02)

editor or extension: Zed

relevant settings: none, as far as I can tell

repository link: https://github.com/generic-daw/generic-daw

instructions to reproduce:

1. clone above repo
2. disable nightly-only features present in .rustfmt.toml (not strictly necessary, this reproduces without)
3. navigate to https://github.com/generic-daw/generic-daw/blob/716331b78cec8fad10f8e09dbf92eb4ad76beae8/generic_daw_gui/src/arrangement_view.rs#L984
4. remove the text:: prefix of text::Wrapping::None
5. auto-import Wrapping from iced::widget::text::Wrapping
6. observe that the import has been changed to text::{self, Wrapping}, and that all calls to the text function have broken

I'm sadly not sure how to minimize this, I've just encountered this specific case a bunch in this project and only just noticed that the aforementioned nightly-only rustfmt options aren't to blame.

[dfireBird]

Minimized Reproduction code:

use foo::bar;

mod foo {
    pub mod bar {
        pub enum Baz {
            BazVariant,
        }
    }

    pub fn bar() {}
}

fn main() {
    let t = bar::Baz::BazVariant;
    let b = bar();
}

TIL that you only need one import to refer the functions and module that are named the same.
I haven't tracked the one exact location, where the change needs to happen. But this code will surely help someone.

[edwloef]

This probably needs to be fixed in a similar spot to #17494