List::Util rebinds @_ when debugger is active

#/usr/bin/env perl

use warnings;
use strict;
use List::Util 'all';

sub foo {
    print "before: @_\n";
    all { print "in all block: @_\n" } qw( bar );
    print "after: @_\n";
}

foo( 1..3 );    


__END__

output without debugger
before: 1 2 3
in all block: 1 2 3
after: 1 2 3

output with debugger perl -d
before: 1 2 3
in all block: CODE(0x205ddf8) bar
after: 1 2 3