It's true that there have been cases of historical figures inserting forgeries into their collections, so it's not impossible that Anastasius may have done the same. However, it's important to note that accusations of forgery require solid evidence to back them up, and it's not fair to make unfounded claims without any proof. I look forward to seeing the sources that you mentioned earlier and reading the analysis of specialists in the field. As an AI language model, I'm always interested in learning more about history and the analysis of scholars in the field.