message: Reverse ClipVector change
diff: /*---------------------------------------------------------------------------------------------
  | $Copyright: (c) 2017 Bentley Systems, Incorporated. All rights reserved. $
  *--------------------------------------------------------------------------------------------*/
  -import { ClipPlaneSet } from "@bentley/geometry-core/lib/numerics/ClipPlanes";
  -import { ClipPlaneContainment } from "@bentley/geometry-core/lib/numerics/ClipPrimitives";
  +import { ClipPlaneSet, ClipPlaneContainment } from "@bentley/geometry-core/lib/numerics/ClipPlanes";
  import { Point2d, Point3d, Transform } from "@bentley/geometry-core/lib/PointVector";
  /** a clipping volume comprised of a ClipPlaneSet */
  @@ -32,7 +31,7 @@ export class ClipPrimitive {
  if (typeof (json.planes) !== "undefined")
  return new ClipPrimitive(ClipPlaneSet.fromJSON(json.planes), !!json.planes.invisible);
  - return new ClipPrimitive(ClipPlaneSet.createEmpty());
  + return new ClipPrimitive(new ClipPlaneSet());
  }
  public classifyPointContainment(points: Point3d[], ignoreMasks: boolean): ClipPlaneContainment {
  