Set $Data::Dumper::Deepcopy to true before dumping.

#!/usr/bin/env perl

use Data::Dumper;
use strict;
use warnings;

my %hash=("one two"=>"buckle my shoe","three four"=>"shut the door");
my @arrayOfHashes;
for (1..3) {
    push @arrayOfHashes,\%hash;
    }
warn 'BEFORE: ',Data::Dumper->Dump([\@arrayOfHashes],[qw(*arrayOfHashe
+s)]),' ';
$Data::Dumper::Deepcopy=1;
warn 'AFTER: ',Data::Dumper->Dump([\@arrayOfHashes],[qw(*arrayOfHashes
+)]),' ';
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BEFORE: @arrayOfHashes = (
                   {
                     'one two' => 'buckle my shoe',
                     'three four' => 'shut the door'
                   },
                   $arrayOfHashes[0],
                   $arrayOfHashes[0]
                 );
  at DataDumperDeepCopy.t line 12.
AFTER: @arrayOfHashes = (
                   {
                     'one two' => 'buckle my shoe',
                     'three four' => 'shut the door'
                   },
                   {
                     'one two' => 'buckle my shoe',
                     'three four' => 'shut the door'
                   },
                   {
                     'one two' => 'buckle my shoe',
                     'three four' => 'shut the door'
                   }
                 );
  at DataDumperDeepCopy.t line 14.
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