Ref completions break when the prefix is a keyword (e.g. `mod`)

[Oatall]

rust-analyzer version:
rust-analyzer 0.3.2196-standalone (327ab29 2024-11-24)
and nightly: rust-analyzer 0.4.2200-standalone (ab44866 2024-11-28)

rustc version:
rustc 1.83.0 (90b35a623 2024-11-26)
1.82 also

editor or extension:
VSCodium + rust-analyzer-no-server.vsix (friend: VSCode + ? This bug also exists)

relevant settings:

repository link (if public, optional):

code snippet to reproduce:

use std::{fs::File, io::{BufReader, Read}};

fn main() {
    if let Ok(file) = File::open("bug.txt") {
        let mut reader = BufReader::new(file);
        let mut mod_info = String::new();
        reader.read_to_string();
    }
}

When I use helix, I encountered the bug #18547,

I switched to VSCodium, it's Ok. I think that bug may be Helix's bug. Not working properly with new version of RA.

But now I encountered this bug, I think this bug may be RA's bug.

When I type mod and then select &mut mod_info and confirm, it becomes mod&mmod_info
code snippet to reproduce is above.

[mfontanini]

removed to avoid noise

[flodiebold]

@mfontanini your bug is #18547. This issue here describes a different problem in the end, which is why I left it open instead of closing as duplicate.

[Veykril]

Regarding this issue, I think this is caused by our hack for mapiing between the adjusted syntax tree and the original one getting too out of sync. This will likely have to wait on our salsa upgrade + its database forking feature (once thats implemented), that would trivially solve this.