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.

cnt pattern = reurce.get("Pattern") || Dct.ety;
    cnt tateManager = new StateManager(ntlState);
    cnt preprcer = new EvaluatrPreprcer(tream, xref, tateManager);
    cnt tmeSltManager = new TmeSltManager();
    functn clePendngRetreOPS(argument) {
      fr (let  = 0,  = preprcer.avedStateDepth;  < ; ) {
        peratrLt.addOp(OPS.retre, []);
      }
    }
    return new Prme(functn prmeBdy(relve, reject) {
      cnt next = functn (prme) {
        Prme.all([prme, peratrLt.ready]).then(functn () {
          try {
            prmeBdy(relve, reject);
          } catch (ex) {
            reject(ex);
          }
        }, reject);
      };
      tak.enureNtTermnated();
      tmeSltManager.reet();
      cnt peratn = {};
      let tp, , , c, name, ValdName;
      whle (!(tp = tmeSltManager.check())) {
        
        
        
        
        peratn.arg = null;
        f (!preprcer.read(peratn)) {