message: Don't try to set find icons if no capture is loaded
diff: @@ -1278,7 +1278,7 @@ int EventBrowser::SetFindIcons(RDTreeWidgetItem *parent, QString filter)
  int EventBrowser::SetFindIcons(QString filter)
  {
  - if(filter.isEmpty())
  + if(filter.isEmpty() || !m_Ctx.IsCaptureLoaded())
  return 0;
  return SetFindIcons(ui->events->topLevelItem(0), filter);
  