message: fix(svg): fix pattern error when rotation not exists
diff: @@ -156,7 +156,7 @@ export default class PatternManager extends Definable {
  if (imageSrc) {
  const x = pattern.x || 0;
  const y = pattern.y || 0;
  - const rotation = pattern.rotation / Math.PI * 180;
  + const rotation = (pattern.rotation || 0) / Math.PI * 180;
  const scaleX = pattern.scaleX || 1;
  const scaleY = pattern.scaleY || 1;
  const transform = `translate(${x}, ${y}) rotate(${rotation}) scale(${scaleX}, ${scaleY})`;
  