Attach (recommended) or Link to PDF file here:
issue13500 (in test corpus)

This regressed when landing #13566. 

What is the expected behavior? (add screenshot)
<img width="664" alt="image" src="https://user-images.githubusercontent.com/942640/122467522-7bc8aa80-cf6f-11eb-9d4d-311eb7c64fb2.png">


What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/942640/122467565-85eaa900-cf6f-11eb-9c10-8a8686ed440c.png)


return this[$extra].space || { width: 0, height: 0 };
  }
  [$toHTML]() {
    
    if (!this[$extra]) {
      this[$extra] = {
        numberOfUse: 1,
      };
    }
    const children = [];
    this[$extra].children = children;
    const style = Object.create(null);
    if (this.medium && this.medium.short && this.medium.long) {
      style.width = measureToString(this.medium.short);
      style.height = measureToString(this.medium.long);
      this[$extra].space = {
        width: this.medium.short,
        height: this.medium.long,
      };
      if (this.medium.orientation === "landscape") {
        const x = style.width;
        style.width = style.height;