Broken UI on a closed Merge Request from a deleted source project

Summary

Broken UI is broken on a closed Merge Request with source project missing

Steps to reproduce

An error message says it all on https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15824 .

Example Project

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15824

What is the current bug behavior?

Has an extra margin on bottom.

What is the expected correct behavior?

Should not have an extra margin on bottom.

Relevant logs and/or screenshots

case	img
before
after

Output of checks

This bug happens on GitLab.com (11.9.0-rc3-ee).

Possible fixes

Fix the relevant HAML file(s).