First instruction on how to replicate...
This is quite easy to replicate with copy paste.
Question is, why is it there?
I believe that Dr. Parkhomov needed to hide something that is not necessarily needed to show. Maybe some sensor failed, maybe he tried something. But for presentation you want to show clear results.
If you want to falsify something, you are taking extra care, but Dr. Parkhomov do not need to pay extra care as he is sure with his results.
Moreover, if you are in hurry, additional mistakes can occur.