When installing phpmyadmin on a server without mysql php module, the error message is double-escaped and is displayed like:
Die Erweiterung mysqli fehlt. Bitte die PHP-Konfiguration überprüfen. <a href="Documentation.html#faqmysql" target="documentation"><img src="themes/dot.gif" title="Dokumentation" alt="Dokumentation" class="icon ic_b_help" /></a>
Don't know if this has security implications.
In discussion, see https://github.com/phpmyadmin/phpmyadmin/commit/999e85b5.
Also, in the first sentence of the error message, the link does not work.
See https://sourceforge.net/tracker/?func=detail&aid=3601009&group_id=23067&atid=377408 for the other bug.