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.

);
      expect(
        passwordNeededLoadingTask instanceof PDFDocumentLoadingTask
      ).toEqual(true);
      const result1 = passwordNeededLoadingTask.promise.then(
        function () {
          
          expect(false).toEqual(true);
          return Promise.reject(new Error("loadingTask should be rejected"));
        },
        function (data) {
          expect(data instanceof PasswordException).toEqual(true);
          expect(data.code).toEqual(PasswordResponses.NEED_PASSWORD);
          return passwordNeededLoadingTask.destroy();
        }
      );
      const passwordIncorrectLoadingTask = getDocument(
        buildGetDocumentParams(filename, {
          password: "qwerty",
        })
      );
      expect(
        passwordIncorrectLoadingTask instanceof PDFDocumentLoadingTask
      ).toEqual(true);
      const result2 = passwordIncorrectLoadingTask.promise.then(
        function () {
          
          expect(false).toEqual(true);
          return Promise.reject(new Error("loadingTask should be rejected"));
        },