Robert Rohde wrote:
I had an occasion to move (with redirect suppressed) a Mediawiki: page into Template: The intent was that the Mediawiki system message should then fall back to its default behavior, while the page's contents could still be used as a template under circumstances where it was desirable to do so.
However, after several hours the system message is still giving the same result and doesn't recognize that its contents were removed.
Obviously this is some sort of caching issue, perhaps because the software doesn't know how to react properly to having a Mediawiki page subject to a move. Is this kind of lag likely to clear itself up in short order? How long does the message cache persist?
This is a bug. There is code in Title::moveTo() to update the message cache but it appears to be totally wrong and broken.
The message cache expiry time is 24 hours.
-- Tim Starling