message: Make sure counter selection stays consistent and without duplicate items
diff: @@ -191,11 +191,14 @@ PerformanceCounterSelection::PerformanceCounterSelection(ICaptureContext &ctx,
  if(item->checkState(0) == Qt::Checked)
  {
  // Add
  + if(!m_SelectedCounters.contains((GPUCounter)d.toUInt()))
  + {
  QListWidgetItem *listItem = new QListWidgetItem(ui->enabledCounters);
  listItem->setText(item->text(0));
  listItem->setData(CounterIdRole, d);
  m_SelectedCounters.insert((GPUCounter)d.toUInt(), listItem);
  }
  + }
  else
  {
  // Remove
  