message: MINOR: Also add userData to outline object
diff: @@ -1171,6 +1171,8 @@ export class TileGeometryCreator {
  ? outlineTechnique.secondaryRenderOrder
  : technique.renderOrder - 0.0000001;
  + this.addUserData(tile, srcGeometry, technique, outlineObj);
  +
  const fadingParams = this.getFadingParams(discreteZoomEnv, technique);
  FadingFeature.addRenderHelper(
  outlineObj,
  @@ -1544,10 +1546,6 @@ export class TileGeometryCreator {
  technique: Technique,
  object: THREE.Object3D
  ) {
  - if ((srcGeometry.objInfos?.length ?? 0) === 0) {
  - return;
  - }
  -
  if (isTerrainTechnique(technique)) {
  assert(
  Object.keys(object.userData).length === 0,
  