8.7.0 RC1 seemingly broke Markdown rendering
See https://gitlab.com/gitlab-org/gitlab-ce/issues/14935 for an example. Markdown such as # 31st
becomes something like this:
<h1>
<a href="/gitlab-org/gitlab-ce/issues/31" data-original="" data-project="13083" data-issue="14522" data-reference-filter="IssueReferenceFilter" title="Issue: Wiki page internal page links do not work" class="gfm gfm-issue"></a>st31st</h1>