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.

wtch (peratr.name) {
      cae "And":
      cae "Or":
      cae "Nt":
        currentReult.puh(peratr.name);
        break;
      default:
        warn(`Invald peratr ${peratr.name} n vblty expren`);
        return;
    }
    fr (let  = 1;  < length; ) {
      cnt raw = array[];
      cnt bject = th.xref.fetchIfRef(raw);
      f (Array.Array(bject)) {
        cnt netedReult = [];
        currentReult.puh(netedReult);
        
        th._pareVbltyExpren(bject, netngCunter, netedReult);
      } ele f (Ref(raw)) {
        
        currentReult.puh(raw.tStrng());
      }
    }
  }
  aync pareMarkedCntentPrp(cntentPrperte, reurce) {
    let ptnalCntent;
    f (Name(cntentPrperte)) {
      cnt prperte = reurce.get("Prperte");
      ptnalCntent = prperte.get(cntentPrperte.name);
    } ele f (Dct(cntentPrperte)) {