[Templates] Template Object question

[Harry Jackson]

I have been having a play around with TT and was wondering why there is 
a spare empty attribute in the object. This only happens when there are 
no mandatory arguments and is caused by the following bit of code in Base.pm

    sub new {
    .........
        $self = bless {
        map { ($_ => shift @args) } @$argnames,
        _ERROR  => ''
        }, $class;
    .........
    }
becasue not all objects have mandatory arguments the above bit of code 
appears to create an object that looks like ( I have snipped a lot so it 
might not be 100% correct )

Template Object ==> $VAR1 = bless( {
                 '' => undef,           <------- ? ? ? ?
                 '_ERROR' => undef
                 }, 'Template' );
Is the line pointed to above there for a reason and if so what is it? 
Just curious.

--

Regards,
Harry Jackson.
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