Additional border in project file tree

Summary

Additional border in project file tree

Steps to reproduce

  1. Open https://gitlab.com/gitlab-org/gitlab
  2. Scroll to the last file in the project tree
  3. Hover over the file
  4. You will see additonal border while hovering

Example Project

https://gitlab.com/gitlab-org/gitlab

Relevant logs and/or screenshots

Screenshot

Output of checks

This bug happens on GitLab.com