When an item has borders applied and the report is exported to PDF, the border lines "stick out" at the joints. The image below illustrates this.

Some additional information about the issue:
- The issue seems to appear only in Chromium-based browsers.
- Microsoft Edge -> reproducible
- Google Chrome -> reproducible
- Opera -> reproducible
- Mozilla Firefox -> not reproducible
- Adobe Acrobat -> not reproducible
- The borders "stick out" differently based on the zoom level. In some zoom levels, there are no issues, in others the borders "stick out" at the bottom, right, etc.