message: Fix issue with outgoing sparkline.  The reporter was flipped so we were
  getting incorrect metrics in certain situation, especially for service
  nodes or nodes in istio-system.
diff: @@ -133,8 +133,8 @@ export default class SummaryPanelNode extends React.Component<SummaryPanelPropTy
  // use dest metrics for incoming, except for service nodes which need source metrics to capture source errors
  const reporter: Reporter =
  data.nodeType === NodeType.SERVICE && data.namespace !== serverConfig().istioNamespace
  - ? 'destination'
  - : 'source';
  + ? 'source'
  + : 'destination';
  // For special service dest nodes we want to narrow the data to only TS with 'unknown' workloads (see the related
  // comparator in getNodeDatapoints).
  const byLabels = this.isSpecialServiceDest(nodeMetricType) ? ['destination_workload'] : undefined;
  