Introduction date: July 7, 2023
Introduction PR: https://github.com/mozilla/pdf.js/commit/5c5f9af803187d616703c19987eca5d7d39d9420 (/cc @calixteman)
Type: intermittent (sometimes it works, indicating a possible timing/waiting issue)
OS: Windows
Logs: http://54.193.163.58:8877/86bd72072bc402b/output.txt
Traceback:

```
Failures:
1) FreeText Editor FreeText (edit existing in double clicking on it) must move an annotation
  Message:
[31m    In firefox: Expected '' to equal 'pdfjs_internal_editor_0-editor'.[0m
  Stack:
        at <Jasmine>
        at C:\pdfjs\botio-files-pdfjs\private\86bd72072bc402b\test\integration\freetext_editor_spec.js:1187:14
        at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        at async Promise.all (index 0)
        at async UserContext.<anonymous> (C:\pdfjs\botio-files-pdfjs\private\86bd72072bc402b\test\integration\freetext_editor_spec.js:1176:7)
  Message:
[31m    In firefox: Expected 'inherit' to equal 'true'.[0m
  Stack:
        at <Jasmine>
        at C:\pdfjs\botio-files-pdfjs\private\86bd72072bc402b\test\integration\freetext_editor_spec.js:1188:61
        at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
        at async Promise.all (index 0)
        at async UserContext.<anonymous> (C:\pdfjs\botio-files-pdfjs\private\86bd72072bc402b\test\integration\freetext_editor_spec.js:1176:7)
```
"[data-annotation-id='26R']",
            el => el.hidden
          );
          expect(hidden).withContext(`In ${browserName}`).toBeTrue();
          
          await page.click("#editorFreeText");
          await page.focus(".annotationEditorLayer");
          
          await page.keyboard.down("Control");
          await page.keyboard.press("z");
          await page.keyboard.up("Control");
          await page.waitForTimeout(10);
          serialized = await getSerialized(page);
          expect(serialized).withContext(`In ${browserName}`).toEqual([]);
          editorIds = await getEditors(page, "freeText");
          expect(editorIds.length).withContext(`In ${browserName}`).toEqual(6);
          
          await page.keyboard.down("Control");
          await page.keyboard.press("z");
          await page.keyboard.up("Control");
          await page.waitForTimeout(10);
          
          editorIds = await getEditors(page, "freeText");
          expect(editorIds.length).withContext(`In ${browserName}`).toEqual(6);
        })
      );
    });
  });
  describe("FreeText (update existing but not empty ones)", () => {
    let pages;