Wikimedia Bugzilla is closed!

In Parser.php, the magicRFC() function cleverly converts text like "RFC 1149"
into an external link. Unfortunately, this breaks wikilinks to RFCs like [[RFC
1149]].

Maybe the magic RFC code should be removed altogether, or made optional; it
seems to be a somewhat esoteric case. For Wikipedia, the generally accepted
style is to put external links at the end of an article, rather than embedding
them within the article. If someone wants to link to the full text of an RFC, I
don't think it would be too difficult to do it by hand, as with any other
external link.