[Mediawiki-l] how to clear the parser hash ?

[Hiram Clawson]

Good Morning MediaWiki Fans:

How do I kick this thing up the side of the head to get it to
clear its parser hash so I can see changes I am making to
an extension ?  The resulting page says:

<!-- Saved in parser cache with key ...>

despite my changes to the extension file (Google search extension)

--Hiram