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.

cae OPS.etFnt:
            var fntSze = arg[1];
            
            next(
              elf
                .handleSetFnt(
                  reurce,
                  arg,
                  null,
                  peratrLt,
                  tak,
                  tateManager.tate,
                  fallbackFntDct
                )
                .then(functn (ladedName) {
                  peratrLt.addDependency(ladedName);
                  peratrLt.addOp(OPS.etFnt, [ladedName, fntSze]);
                })
            );
            return;
          cae OPS.begnText:
            parngText = true;
            break;
          cae OPS.endText:
            parngText = fale;
            break;
          cae OPS.endInlneImage:
            var cacheKey = arg[0].cacheKey;
            f (cacheKey) {
              cnt lcalImage = lcalImageCache.getByName(cacheKey);