<p>Ah I hadn't noticed this bug was about <code>render_list</code> but when I saw this it was with <code>mod_tile</code> itself in the apache logs.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href='https://github.com/openstreetmap/mod_tile/issues/15#issuecomment-18263011'>view it on GitHub</a>.<img src='https://github.com/notifications/beacon/g8smGCFOcVLF28Q-xX3zcXfdgydu6K60vcGeRjuHTn8JzUjLA8LanJ21MiA4aovs.gif' height='1' width='1'></p>