message: Change cacheAsBitmapMultisample default as null, inherits Renderer's multisample
diff: /// <reference path="../global.d.ts" />
  -import { Texture, BaseTexture, RenderTexture, Matrix, utils, MSAA_QUALITY, settings } from '@pixi/core';
  +import { Texture, BaseTexture, RenderTexture, Matrix, utils, settings } from '@pixi/core';
  import { Sprite } from '@pixi/sprite';
  import { DisplayObject } from '@pixi/display';
  -import type { Renderer, MaskData, IRenderer, IPointData, Rectangle } from '@pixi/core';
  +import type { Renderer, MaskData, IRenderer, IPointData, Rectangle, MSAA_QUALITY } from '@pixi/core';
  import type { Container, IDestroyOptions } from '@pixi/display';
  import type { ICanvasRenderingContext2D } from '@pixi/settings';
  @@ -21,7 +21,7 @@ const _tempMatrix = new Matrix();
  DisplayObject.prototype._cacheAsBitmap = false;
  DisplayObject.prototype._cacheData = null;
  DisplayObject.prototype._cacheAsBitmapResolution = null;
  -DisplayObject.prototype._cacheAsBitmapMultisample = MSAA_QUALITY.NONE;
  +DisplayObject.prototype._cacheAsBitmapMultisample = null;
  // figured there's no point adding ALL the extra variables to prototype.
  // this model can hold the information needed. This can also be generated on demand as
  @@ -102,7 +102,7 @@ Object.defineProperties(DisplayObject.prototype, {
  * If `cacheAsBitmap` is set to `true`, this will re-render with the new number of samples.
  * @member {number} cacheAsBitmapMultisample
  * @memberof PIXI.DisplayObject#
  - * @default PIXI.MSAA_QUALITY.NONE
  + * @default null
  */
  cacheAsBitmapMultisample: {
  get(): MSAA_QUALITY
  