False positive error involving double reference

[Coder-256]

I'm getting what appears to be a false-positive error in my IDE, but cargo build succeeds.

rust-analyzer version: 0.3.2096-standalone

rustc version: rustc 1.81.0 (eeb90cda1 2024-09-04)

editor or extension: VS Code 1.93.0, rust-analyzer VS Code extension v0.3.2096

relevant settings: none

repository link (if public, optional): N/A

code snippet to reproduce:

use std::borrow::Borrow;

fn buggy<T: Borrow<Q>, Q: Ord>(a: T, b: &Q) -> std::cmp::Ordering {
    a.borrow().cmp(b)
}

Error:

expected &&{unknown}, found &Q

Screenshot:

Ironically if I do add a reference, it triggers a clippy warning ("this expression creates a reference which is immediately dereferenced by the compiler").

[ChayimFriedman2]

Probably #5514.

[Veykril]

Dupe of #5514