message: fix(svg): fix error when clear if viewport is moved to other dom in bmap extension.
diff: @@ -414,8 +414,9 @@ class SVGPainter implements PainterBase {
  }
  clear() {
  - if (this._viewport) {
  - this.root.removeChild(this._viewport);
  + const viewportNode = this._viewport;
  + if (viewportNode && viewportNode.parentNode) {
  + viewportNode.parentNode.removeChild(viewportNode);
  }
  }
  