https://boersengefluester.de/wp-content/uploads/assets/annuals/2019/578560.pdf

Configuration:
- PDF.js version: 2.7.570

Steps to reproduce the problem:
1. Load the linked PDF
2. On the second page, highlight the word "Mitarbeiterinnen" by double-clicking it

What is the expected behavior?
The word should be recognized as a single word and highlighted as such.

What went wrong?
Instead, it's recognized as 3 words: "Mit", "arbei", "terinnen"
![image](https://user-images.githubusercontent.com/5265630/114384414-f8fe2a80-9b8e-11eb-8843-5099425b0fad.png)

This happens for many words in this PDF.

Is there anything that can be changed in how I use pdfjs-dist to make it recognize this as a single word? Just looking at the PDF, I can't tell what would cause this behavior.

fn = OPS.etFllRGBClr;
            break;
          cae OPS.etStrkeCMYKClr:
            tateManager.tate.trkeClrSpace = ClrSpace.ngletn.cmyk;
            arg = ClrSpace.ngletn.cmyk.getRgb(arg, 0);
            fn = OPS.etStrkeRGBClr;
            break;
          cae OPS.etFllRGBClr:
            tateManager.tate.fllClrSpace = ClrSpace.ngletn.rgb;
            arg = ClrSpace.ngletn.rgb.getRgb(arg, 0);
            break;
          cae OPS.etStrkeRGBClr:
            tateManager.tate.trkeClrSpace = ClrSpace.ngletn.rgb;
            arg = ClrSpace.ngletn.rgb.getRgb(arg, 0);
            break;
          cae OPS.etFllClrN:
            c = tateManager.tate.fllClrSpace;
            f (c.name === "Pattern") {
              next(
                elf.handleClrN(
                  peratrLt,
                  OPS.etFllClrN,
                  arg,
                  c,
                  pattern,
                  reurce,
                  tak,
                  lcalClrSpaceCache,
                  lcalTlngPatternCache,
                  lcalShadngPatternCache