Attach (recommended) or Link to PDF file here:
[PATTYP2.pdf](https://github.com/mozilla/pdf.js/files/6471935/PATTYP2.pdf)

Configuration:
- Web browser and its version: FF 88.0.1
- Operating system and its version: W10.0.19042.985
- PDF.js version: https://mozilla.github.io/pdf.js/web/viewer.html

Steps to reproduce the problem:
1. open file to display

What is the expected behavior? (add screenshot)
![grafik](https://user-images.githubusercontent.com/6665575/118114800-5e407800-b3e8-11eb-860f-019f48a8eabf.png)

What went wrong? (add screenshot)
![grafik](https://user-images.githubusercontent.com/6665575/118114841-6c8e9400-b3e8-11eb-8252-1517e5d76475.png)

(memo for me: when fixed, check the files in https://issues.apache.org/jira/browse/PDFBOX-1958 )

this.ctx.transform(a, b, c, d, e, f);
      this._cachedGetSinglePixelWidth = null;
    }
    
    constructPath(ops, args) {
      const ctx = this.ctx;
      const current = this.current;
      let x = current.x,
        y = current.y;
      for (let i = 0, j = 0, ii = ops.length; i < ii; i++) {
        switch (ops[i] | 0) {
          case OPS.rectangle:
            x = args[j++];
            y = args[j++];
            const width = args[j++];
            const height = args[j++];
            const xw = x + width;
            const yh = y + height;
            ctx.moveTo(x, y);
            if (width === 0 || height === 0) {
              ctx.lineTo(xw, yh);
            } else {
              ctx.lineTo(xw, y);
              ctx.lineTo(xw, yh);
              ctx.lineTo(x, yh);
            }
            ctx.closePath();
            break;
          case OPS.moveTo:
            x = args[j++];