:Editors may continue to edit articles involved in mediation while the mediation is ongoing; if it were otherwise, the article would be protected. It would not be out of the question for a condition of the mediation to be that both editors stop editing it, but it is not required. Mediation is a cooperative effort, and does not involve complex procedure; it is, for the most part, what the editors agree to in consultation with the mediator. Either editor may withdraw at any point, and may continue to edit the article while the mediation is ongoing; of course, continuing the actions that led to the mediation may make mediation less successful, but is not a violation of any policy.  

 :It is not the responsibility of any party to a mediation to quote mediation policy to the others; there is no place for wikilawyering in mediation. If there are issues, it should be brought to the attention of the mediator, who will take the necessary action. If a mediator has not yet be assigned, it should be brought to my attention, and I will handle it.  

 :Since you didn't mention the specific case, I don't know whether a mediator has been assigned or not; if one has, please bring this to the attention of the mediator, if not, let me know, and I will look into the matter.   •