Historically, I vaguely remember that we have used that title for user script / style loading with action=raw. I think that's gone from the skin code, but it's possible that user scripts still reference this title.
Gabriel
On Wed, Dec 2, 2015 at 8:41 AM, Oliver Keyes okeyes@wikimedia.org wrote:
One of the most prominent top articles has no page; it's "-". What is this?
-- Oliver Keyes Count Logula Wikimedia Foundation
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