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?
-Robert Rohde
Have you tried purging the MediaWiki: page?