Attach (recommended) or Link to PDF file here:
[NHA-20211231-A-018_before.pdf](https://github.com/mozilla/pdf.js/files/8055863/NHA-20211231-A-018_before.pdf)

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: Windows 11

Steps to reproduce the problem:
1. Search for "a"
2. Some highlighter results are wrong

![image](https://user-images.githubusercontent.com/5641725/153760070-61708a75-524c-4a21-bc1f-7745e9151b97.png)

After investigations some results are shifted because of a bug with "-\n".
matchIndex: 0,
      },
      pageMatches: [[19, 46, 62]],
      pageMatchesLength: [[8, 8, 8]],
    });
    await testSearch({
      eventBus,
      pdfFindController,
      state: {
        query: "1/2",
      },
      matchesPerPage: [2],
      selectedMatch: {
        pageIndex: 0,
        matchIndex: 0,
      },
      pageMatches: [[27, 54]],
      pageMatchesLength: [[1, 1]],
    });
    await testSearch({
      eventBus,
      pdfFindController,
      state: {
        query: "½",
      },
      matchesPerPage: [2],
      selectedMatch: {
        pageIndex: 0,
        matchIndex: 0,
      },