Attach (recommended) or Link to PDF file here:
[multiple.pdf](https://github.com/mozilla/pdf.js/files/6344777/multiple.pdf)

Steps to reproduce the problem:
1. Write something in a field

What is the expected behavior? (add screenshot)
The 3 fields must have the same value

What went wrong? (add screenshot)
The 2 other fields are empty

The three fields share the same name `Text3`.
It works as expected in Adobe and Chrome.
this.container.className = this.containerClassName;
    
    
    const data = this.data;
    const width = data.rect[2] - data.rect[0];
    const height = data.rect[3] - data.rect[1];
    const svg = this.svgFactory.create(width, height);
    for (const inkList of data.inkLists) {
      
      
      
      
      let points = [];
      for (const coordinate of inkList) {
        const x = coordinate.x - data.rect[0];
        const y = data.rect[3] - coordinate.y;
        points.push(`${x},${y}`);
      }
      points = points.join(" ");
      const polyline = this.svgFactory.createElement(this.svgElementName);
      polyline.setAttribute("points", points);
      
      
      polyline.setAttribute("stroke-width", data.borderStyle.width || 1);
      polyline.setAttribute("stroke", "transparent");
      polyline.setAttribute("fill", "none");
      
      
      this._createPopup(polyline, data);
      svg.appendChild(polyline);