message: stop overriding tile admin props
diff: @@ -24,10 +24,15 @@ class MarkerHandler extends SectionMarkerHandler {
  export class DisplayPerfTestApp {
  public static async startup(iModelApp?: IModelAppOptions): Promise<void> {
  iModelApp = iModelApp ?? {};
  + if (iModelApp.tileAdmin === undefined) {
  iModelApp.tileAdmin = {
  minimumSpatialTolerance: 0,
  cesiumIonKey: process.env.IMJS_CESIUM_ION_KEY,
  };
  + } else {
  + iModelApp.tileAdmin.minimumSpatialTolerance = 0;
  + iModelApp.tileAdmin.cesiumIonKey = process.env.IMJS_CESIUM_ION_KEY;
  + }
  /* eslint-disable @typescript-eslint/naming-convention */
  iModelApp.mapLayerOptions = {
  