OrigDocNo. field in invoice

Hi Experts ,

I want to know how "OrigDocNo." field gets value in EA40 - Print document .( reversal information for original document ).

I have a following case -

Print doc 1 was created before print doc 2.

Print doc 1 was reversed.

Print doc 2 was reversed.

Now , print document 3 is created . It is showing OrigDocNo. reference to print doc 1.

Is it correct or should it show Print doc 2 as it was latest ?

Please let me know process how this gets populated.

Thanks,

Nachiket