message: Fix cacheAsBitmap filter
diff: @@ -184,7 +184,8 @@ DisplayObject.prototype._initCachedDisplayObject = function _initCachedDisplayOb
  // for now we cache the current renderTarget that the WebGL renderer is currently using.
  // this could be more elegant..
  - const cachedRenderTarget = renderer.renderTexture.current;
  + const cachedRenderTexture = renderer.renderTexture.current;
  + const cachedSourceFrame = renderer.renderTexture.sourceFrame;
  const cachedProjectionTransform = renderer.projection.transform;
  // We also store the filter stack - I will definitely look to change how this works a little later down the line.
  @@ -216,7 +217,7 @@ DisplayObject.prototype._initCachedDisplayObject = function _initCachedDisplayOb
  // now restore the state be setting the new properties
  renderer.projection.transform = cachedProjectionTransform;
  - renderer.renderTexture.bind(cachedRenderTarget);
  + renderer.renderTexture.bind(cachedRenderTexture, cachedSourceFrame);
  // renderer.filterManager.filterStack = stack;
  