message: fix(edge-renderer): source and target can be the same
diff: @@ -160,7 +160,8 @@ export const getSourceTargetNodes = (edge: Edge, nodes: Node[]): SourceTargetNod
  (res, node) => {
  if (node.id === edge.source) {
  res.sourceNode = node;
  - } else if (node.id === edge.target) {
  + }
  + if (node.id === edge.target) {
  res.targetNode = node;
  }
  return res;
  