Wikimedia Bugzilla is closed!

In a top-level namespace (on en.wikipedia, "Wikipedia:", "Talk:", etc.), any page starting 
with a backslash "/" appears as if it does not exist when rendered even though it can be 
edited and has text in it, and it has a history. For example, [[en:Talk:/dev/null]] 
behaves this way.

[[en:Wikipedia:/test]] (now deleted) has the same problem. It renders properly immediately 
after saving it initially, though on subsequent loads it gives the message for a 
nonexistent article.

[[en:/dev/null]] and [[en:User:Evil saltine:/test]] both work properly.