Short option names must be unique for each argument - Not detected during compilation

[ohaddahan]

Please complete the following tasks

• I have searched the discussions
• I have searched the open and rejected issues

Rust Version

rustc 1.67.1

Clap Version

4.2.0

Minimal reproducible code

#[derive(Parser, Debug)]
#[command(author, version, about, long_about = None)]
struct Args {
    #[arg(short, long)]
    file: String,
    #[arg(short, long)]
    mode: Mode,
    #[arg(short, long, requires = "mode")]
    speaker_0: Option<String>,
    #[arg(short, long, requires = "mode")]
    speaker_1: Option<String>,
}

fn main() {
    let args = Args::parse();
}

Steps to reproduce the bug with the above code

cargo run

Actual Behaviour

Short option names must be unique for each argument, but '-s' is in use by both 'speaker_0' and 'speaker_1''

Expected Behaviour

This can be detected during compile time and should fail then.

Additional Context

No response

Debug Output

No response

[epage]

We are tracking this in #3133