Panic on remove() about treebitmap

[ccakes]

Actually - I can reproduce it with a pretty small example. This is using 0.4 from crates.io

use treebitmap::IpLookupTable;

use std::error::Error;
use std::net::Ipv4Addr;

const ADDR: Ipv4Addr = Ipv4Addr::new(49, 255, 11, 17);

fn main() -> Result<(), Box<dyn Error>> {
    let mut table = IpLookupTable::new();

    table.insert( Ipv4Addr::new(49, 255, 11, 16), 28, ());
    table.insert( ADDR, 32, ());

    println!("exact_match: {:?}", table.exact_match(ADDR, 32));
    println!("longest_match: {:?}", table.longest_match(ADDR));

    let v = table.remove(ADDR, 32);
    println!("removed: {:?}", v);

    Ok(())
}

[pusateri]

Looks like a bug with overlapping subnets.