Cannot combine flags and options when using short

[ysndr]

When I specify short names for options and flags, i.e. -l, -f, -v <ARG> I can combine the flag arguments as -lf. However it's not possible to also specify -v in that form, i.e. -lfv <ARG> is invalid.
While this will only be possible when there is zero or one value argument in the last position, it does not seem far fetched to expect this to work.

I assume this is a conflict with supporting -lARG:

For short flags value can follow immediately: -fbar. (docs)

Reporducer

use bpaf::{Bpaf, Parser};

#[allow(dead_code)]
#[derive(Debug, Clone, Bpaf)]
struct Args {
    #[bpaf(short, long)]
    list: bool,

    #[bpaf(short, long)]
    force: bool,

    #[bpaf(short, long)]
    value: String,
}

fn main() {
    let parsed = args().run();

    println!("{parsed:?}");
}

# ✅ all separate
$ cargo run -q -- -l -f -v abc
Args { list: true, force: true, value: "abc" }

# ✅ flags combined
$ cargo run -q -- -lf -v abc  
Args { list: true, force: true, value: "abc" }

# 💢 flags and option combined
$ cargo run -q -- -lfv abc  
Error: expected --value=ARG, got -lfv. Pass --help for usage information

# 💢 weird error message when using '=' 
$ cargo run -q -- -lfv=abc
Error: expected --value=ARG, got fv=abc. Pass --help for usage information

[ysndr]

Example in the wild, ie. go cobra i guess:

gh repo view -w -b main
gh repo view -wb main

# but also
gh repo view -w -bmain
gh repo view -wbmain

[pacak]

Ack. I'll see if this can be supported without making things too complicated...

[ysndr]

Thanks for looking into it!