En caso de que este sea efectivamente el error que está causando problemas, aquí explico las consecuencias (podría hacer que tu sitio sea inutilizable):
This patch seems to work! I can tell that the difference between having this patch or not for us meant having a broken site or a(n apparently) fully functional one.
These were the effects of the bug:
Discourse not rendering to anonymous users beyond the header (totally unusable site).
For registered users, probably non-cached content (i.e. Latest lists) wouldn’t render, and the rest was a hit or miss.
Strangely enough, from three admins two would lose access to the web UI completely while a t…