Implement a workaround for QA mattermost failures
What does this MR do?
Temporary workaround for Mattermost failures in GitLab QA. Proper fix is being worked on in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15452.
Does this MR meet the acceptance criteria?
-
Has been reviewed by Backend
What are the relevant issue numbers?
Closes gitlab-qa#102 (closed)