Fix epic fullscreen editing
What does this MR do?
Fix epic fullscreen editing
Are there points in the code the reviewer needs to double check?
Shouldn't be
Why was this MR needed?
~bug
Screenshots (if relevant)
Does this MR meet the acceptance criteria?
-
Changelog entry added, if necessary -
Tests added for this feature/bug -
Backport to CE https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15437 - Review
-
Has been reviewed by Frontend
-
What are the relevant issue numbers?
Closes #4065 (closed)