DSS2 — Service 9.7: Unassociate Regions For Updates: irrelevant attributes

The second sentence in this service description says that, "No changes shall be made to the association set if the specified regions are not in the set of associations of the specified instance attributes." However, it does not indicate what should happen if one or more of the specified regions is in the set of associations. Text needs to be added that clarifies that if one or more of the specified regions is in the set of associations, then these regions shall be unassociated from the specified instance attributes; if any of the specified regions are not in the set of associations of the specified instance attributes, they shall be ignored

Add the suggested clarifying text.