anchor.diff:          skip = Skip,
           keys = Keys,
           include_docs = IncludeDocs,
  -        conflicts = Conflicts,
           stale = Stale,
           view_type = ViewType,
           extra = Extra
  
positive.code:     Acc0 = #view_acc{
          db = Db,
          include_docs = IncludeDocs,
          conflicts = Conflicts,
          limit = Limit+Skip,
          total_rows = Total
      },
  
negative.code:     Acc0 = #view_acc{
          db = Db,
          include_docs = IncludeDocs,
          conflicts = proplists:get_value(conflicts, Extra, false),
          limit = Limit+Skip,
          total_rows = Total,
          reduce_fun = fun couch_view:reduce_to_count/1
  