Missing Overview tab warning about conflicts in Pull Request when page loaded on Diff tab

Summary

When there are pull-request with conflicts:

• Opening the PR and Overview tab (default behaviour), there is an alert about the conflicts
• Opening the PR on Diff or Commits tab and switching to Overview - the alert about conflicts will go missing

Steps to Reproduce

1. Have a repository with a file
2. Create a pull request with conflicts on the file
3. Look at the list of pull-requests and open conflicted one
4. Overview tab should be opened by default
5. At the top, below pull-request name, there should be an alert about the conflicts
6. Switch to Diff or Commits tab
7. Switch to Overview tab, alert about conflicts should still exist
8. Switch to Diff or Commits tab
9. Refresh page
10. Switch to Overview tab
11. Alert about conflicts will be missing

Expected Results

Overview tab should be showing the alert box about conflicts

Actual Results

Overview tab does not show the alert box about conflicts