As I suspected, you have one label and refer to it twice: 

use YAML;

my $x = { Data => { a => 1, b => 2 } };
$x->{Trans} = [ $x->{Data}, $x->{Data} ];
print Dump( $x );
__END__
---
Data: &1
  a: 1
  b: 2
Trans:
  - *1
  - *1

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In reply to Re: hash ref and yaml by kyle
in thread hash ref and yaml by shabtay

Title:
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