anchor.diff:      if (blendMode != null) {
         element.style.mixBlendMode = _stringForBlendMode(blendMode) ?? '';
       }
  -    // Switch to preferring DOM from now on.
  -    _childOverdraw = true;
  +    // Switch to preferring DOM from now on, and close the current canvas.
  +    _closeCurrentCanvas();
     }
   
     @override
  
positive.code:       }
      }
      _children.clear();
      _cachedLastCssFont = null;
      _setupInitialTransform();
    }
  
negative.code:       _applyTargetSize(
            imageElement, image.width.toDouble(), image.height.toDouble());
      }
      _closeCurrentCanvas();
    }
  
    html.ImageElement _reuseOrCreateImage(HtmlImage htmlImage) {
  