Because you are 
$current{'file'}->$param( $source_file{$key}->$param );

$current{'file'}->$param( 
     $source_file{$key}->$param 
);


$current{'file'}->$param( 
     $source_file{$key}->$param()
);

$source_file{$key}->$param();

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In reply to Re: Object selection query by Anonymous Monk
in thread Object selection query by Kraythorne

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