Before dumping the original value, you should have set
$Data::Dumper::Purity = 1;

[download]

It leads to the following output:

$VAR1 = {
          'shared' => \'true',
          'parents' => [
                         {
                           'isRoot' => do{my $o}
                         }
                       ]
        };
$VAR1->{'parents'}[0]{'isRoot'} = $VAR1->{'shared'};

[download]
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Unexpected Data::Dumper results by choroba
in thread Unexpected Data::Dumper results by tqisjim

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