message: refactor(conenctionline): simplify getSourceHandle helper
diff: @@ -27,6 +27,14 @@ interface ConnectionLineProps {
  CustomConnectionLineComponent?: ConnectionLineComponent;
  }
  +const getSourceHandle = (handleId: ElementId | null, sourceNode: Node, connectionHandleType: HandleType) => {
  + const handleTypeInverted = connectionHandleType === 'source' ? 'target' : 'source';
  + const handleBound =
  + sourceNode.__rf.handleBounds[connectionHandleType] || sourceNode.__rf.handleBounds[handleTypeInverted];
  +
  + return handleId ? handleBound.find((d: HandleElement) => d.id === handleId) : handleBound[0];
  +};
  +
  export default ({
  connectionNodeId,
  connectionHandleId,
  @@ -53,22 +61,7 @@ export default ({
  return null;
  }
  - const getSourceHandle = (handleId: ElementId | null, sourceNode: Node) => {
  - const handleBound = sourceNode.__rf.handleBounds[connectionHandleType];
  - if (handleBound) {
  - if (handleId) {
  - return sourceNode.__rf.handleBounds[connectionHandleType].find((d: HandleElement) => d.id === handleId);
  - }
  - return sourceNode.__rf.handleBounds[connectionHandleType][0]
  - }
  - const handleType = connectionHandleType === 'source' ? 'target' : 'source';
  - if (handleId) {
  - return sourceNode.__rf.handleBounds[handleType].find((d: HandleElement) => d.id === handleId);
  - }
  - return sourceNode.__rf.handleBounds[handleType][0]
  - }
  -
  - const sourceHandle = getSourceHandle(handleId, sourceNode);
  + const sourceHandle = getSourceHandle(handleId, sourceNode, connectionHandleType);
  const sourceHandleX = sourceHandle ? sourceHandle.x + sourceHandle.width / 2 : sourceNode.__rf.width / 2;
  const sourceHandleY = sourceHandle ? sourceHandle.y + sourceHandle.height / 2 : sourceNode.__rf.height;
  const sourceX = sourceNode.__rf.position.x + sourceHandleX;
  @@ -81,7 +74,6 @@ export default ({
  const targetPosition = isRightOrLeft ? Position.Left : Position.Top;
  if (CustomConnectionLineComponent) {
  -
  return (
  <g className="react-flow__connection">
  <CustomConnectionLineComponent
  