Attach (recommended) or Link to PDF file here:
[arcs.pdf](https://github.com/mozilla/pdf.js/files/7610486/arcs.pdf)

Configuration:
- Web browser and its version: 96.0a1 (2021-11-26) (64-bit)
- Operating system and its version: Windows 10
- PDF.js version:
- Is a browser extension:

Steps to reproduce the problem:
1. Open PDF

What is the expected behavior? (add screenshot)
Arcs are drawn correctly, and can render on top of each other
![image](https://user-images.githubusercontent.com/7104454/143624981-1a45c37a-bc30-4b64-893a-684da9cdfe3b.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/7104454/143624965-5506df08-3510-4e60-908f-d64499050660.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

for (const event of grandpa.event.children) {
      
      if (event.activity !== "click" || !event.script) {
        continue;
      }
      const jsURL = recoverJsURL(event.script[$content]);
      if (!jsURL) {
        continue;
      }
      const href = fixURL(jsURL.url);
      if (!href) {
        continue;
      }
      
      htmlButton.children.push({
        name: "a",
        attributes: {
          id: "link" + this[$uid],
          href,
          newWindow: jsURL.newWindow,
          class: ["xfaLink"],
          style: {},
        },
        children: [],
      });
    }
    return HTMLResult.success(htmlButton);
  }
}
class Calculate extends XFAObject {