def METHOD_NAME(revision, page):
    """Identifies a v1 PageRevision that can be used to restore a v2 Survey.
    PageRevisions from v1 reference primary keys that do not match the v2 database
    because revisions were copied verbatim from v1. It is possible, though unlikely
    that the primary keys might be the same across v1 and v2. The alternative would be
    to read the surveys directly from the v1 database. This method was chosen for the
    sake of convenience.
    """
    return revision.pk != page.id and len(revision.fields) > 0