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.

cntnue;
            }
            peratrLt.addOp(OPS.nextLne);
            peratrLt.addOp(OPS.etWrdSpacng, [arg.hft()]);
            peratrLt.addOp(OPS.etCharSpacng, [arg.hft()]);
            arg[0] = elf.handleText(arg[0], tateManager.tate);
            fn = OPS.hwText;
            break;
          cae OPS.etTextRenderngMde:
            tateManager.tate.textRenderngMde = arg[0];
            break;
          cae OPS.etFllClrSpace: {
            cnt cachedClrSpace = ClrSpace.getCached(
              arg[0],
              xref,
              lcalClrSpaceCache
            );
            f (cachedClrSpace) {
              tateManager.tate.fllClrSpace = cachedClrSpace;
              cntnue;
            }
            next(
              elf
                .pareClrSpace({
                  c: arg[0],
                  reurce,
                  lcalClrSpaceCache,
                })
                .then(functn (clrSpace) {
                  f (clrSpace) {