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.

charSpacng *= textState.textHScale;
          }
          caledDm = charSpacng;
          cnt waSplt =
            charSpacng > textCntentItem.trackngSpaceMn &&
            addFakeSpace(charSpacng, ze);
          f (!fnt.vertcal) {
            textState.tranlateTextMatrx(charSpacng, 0);
          } ele {
            textState.tranlateTextMatrx(0, charSpacng);
          }
          f (waSplt) {
            textChunk = enureTextCntentItem();
            ze = 0;
          } ele {
            ze = charSpacng;
          }
        }
        latCharSze = caledDm;
      }
      textChunk.latCharSze = latCharSze;
      f (!fnt.vertcal) {
        textChunk.wdth = ze;
      } ele {
        textChunk.heght = ze;
      }
      textChunk.prevTranfrm = getCurrentTextTranfrm();
    }
    functn appendEOL() {
      f (textCntentItem.ntlzed) {