In addition, of course, Vixen overlooks (or is ignorant of) the fact that Knox's prison diary was not a sworn statement - nor, for that matter, was it by any means necessarily written by Knox as any form of notarising everything that happened to her in prison. It was a diary - nothing more or less than that.
So even though Knox does not mention in her prison diary any request to list her sexual partners, this is only the most minor of "evidence" that she in fact was not asked to do so. Had Knox produced a sworn statement about this event which contradicted her ECHR application, then this would clearly constitute a serious (and probably insurmountable) credibility issue on this specific matter. Had Knox even produced a contradictory account in a formal interview (e.g. the December 2007 interview with Mignini), this too would have obviously damaged the credibility of the application on this specific matter.
But I seriously doubt whether the ECHR would judge that the fact that one detail in her application (that the doctor requested that she list all her prior sexual partners) was omitted in her prison diary - a diary that was almost-certainly written under great stress, fear and confusion, and which was only ever intended for Knox's own use - would be of any material significance to this particular aspect of her application. Furthermore, Knox has (to my knowledge) been entirely consistent in her claim that the doctor requested that she write a list of her prior sexual partners ever since she was eventually released from prison in 2011 - and in fact I think perhaps even before this date. Knox's claim was (IIRC) always that the authorities told her to write down her prior sexual partners, and then searched her cell very shortly afterwards - in the knowledge that they would almost certainly find Knox's written list, which they would then confiscate and leak, in order to try to discredit Knox and paint her as a slut (of course, in the event, they were almost certainly very disappointed that Knox's list had far, far fewer names on it than they had expected - though that didn't stop them trying to misrepresent it such that Knox's list referred to the sexual partners she'd had just while she'd been in Italy for those six weeks......).
Lastly, as Numbers correctly points out, this is in any case an extremely peripheral component to Knox's ECHR application. And of course it's entirely unrelated to the matters related to the Lumumba criminal slander - and it's this which Knox (understandably) wants the ECHR to address and remedy far above anything else.