Expanding/collapsing some diff discussions doesn't work

  1. Go to https://dev.gitlab.org/gitlab/gitlab-ee/merge_requests/511/diffs?diff_id=6186&view=parallel#47d8d3a966858be1b555697bcb2fa1e7efac5805_30_58
  2. Scroll down to line 62
  3. Try to open the discussion by clicking my avatar.
  4. Note that this does nothing
  1. Go to https://dev.gitlab.org/gitlab/gitlab-ee/merge_requests/511/diffs?diff_id=6186&view=parallel#47d8d3a966858be1b555697bcb2fa1e7efac5805_30_62 (which has the anchor set to that line 62)
  2. Note that the discussion is not visible, but a blank line where the discussion should have been is