     @db.query query, {}, (err, results)=>
       if err
         console.log ">>> err fetchItems", query, err
-        callback err
+        return callback err
       else
         tempRes = []
         collectContents = race (i, id, fin)=>

    query = """
      START koding=node:koding("id:#{groupId}")
      MATCH koding-[:member]->members<-[:author]-content
      WHERE content.`meta.createdAtEpoch` < #{startDate}
      """

    facets = @facets

    query = """
      start  koding=node:koding("id:#{groupId}")
      MATCH  koding-[r:member]->members
      where  r.createdAtEpoch < {startDate}
      return members
      order by r.createdAtEpoch DESC
      limit 20
      """

    @db.query query, {startDate}, (err, results) ->
      if err
        console.log ">>> err fetchNewMembers", query, err
        return callback err, null
      resultData = []
      for result in results
        data = result.members.data
