message: fix notification watermarks for activity feeds
  fixes
diff: @@ -3,8 +3,6 @@ import { Component, Prop } from 'vue-property-decorator';
  import * as View from '!view!./item.html';
  import { ActivityFeedItem } from '../item-service';
  -import { FiresidePost } from '../../../../../lib/gj-lib-client/components/fireside/post/post-model';
  -import { Notification } from '../../../../../lib/gj-lib-client/components/notification/notification-model';
  import { ActivityFeedContainer } from '../feed-container-service';
  import { AppScrollInview } from '../../../../../lib/gj-lib-client/components/scroll/inview/inview';
  import { AppActivityFeedNotification } from '../notification/notification';
  @@ -40,11 +38,7 @@ export class AppActivityFeedItem extends Vue {
  return false;
  }
  - if (this.item.feedItem instanceof Notification) {
  return this.item.feedItem.added_on > this.feed.notificationWatermark;
  - } else if (this.item.feedItem instanceof FiresidePost) {
  - return this.item.feedItem.published_on > this.feed.notificationWatermark;
  - }
  }
  get isHydrated() {
  