<span class="comment">(/* PleaseStand for +2 for mediawiki<a href="/wiki/Gerrit/Project_ownership" title="Gerrit/Project ownership">→</a><span dir="auto"><span class="autocomment">: </span> new section</span>)</span>
The link is in the wrong place. It seems to be picking up "PleaseStand for +2 for mediawiki/*" and treating the "/*" in "mediawiki/*" as the start of the section.
The pre-filled section-edit summary field populates correctly, making me think that the database is storing this data correctly. That makes this is a parsing bug then, I believe. Perhaps we can tweak the section-edit edit summary parser to be smarter with this edge case?