Enabling "Enable tags for bugs" on http://boogs.wmflabs.org/userprefs.cgi adds an ugly and mostly hidden long item under "Links" in the sidebar (as its default assumes to be in the footer where there is horizontal space).
Parent element is <li id="links-special">
404 help link points to href="docs/en/html/query.html#individual-buglists"
Version: wmf-deployment
Severity: minor