I didn't expect these results of using Data::Dumper (with Useperl(1)) and Clone::clone together. This snippet: 
#!/usr/bin/perl -w
use strict;
use Clone;
use Data::Dumper;

printf "Clone: %s Data::Dumper %s\n",
    $Clone::VERSION,
    $Data::Dumper::VERSION;

my $orig = {
    # This could be arbitrariliy complicated/nested 
    # - this suffices for a demo
    # of the probem
    'array' => [ 1,2,3 ]
};

# Put it throught Data::Dumper with Userperl(1);
my $d = Data::Dumper->new([$orig]);
$d->Useperl(1);
$d->Dump();

# Make a clone - it should be identical, I guess
my $clone = Clone::clone($orig);

# See that the clone has a different structure in array
# (length of $$clone{array} is 0)
printf "orig: %d clone %d\n",
    scalar(@{$$orig{array}}),
    scalar(@{$$clone{array}});

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Produces this output: 
Clone: 0.29 Data::Dumper 2.121_14
orig: 3 clone 0

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I would have expected 
Clone: 0.29 Data::Dumper 2.121_14
orig: 3 clone 3

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Since the orig and the clone should have been identical. Right? Is there a bug here? Where?

In reply to Why does this combo of Data::Dumper and Clone::clone() fail? Bug? by Lightknight

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