Invalid class "imagedetail" with onClickRelease on link in image window

[Trenloe]

CoreRPG v3.3.0 live.

The onClickRelease code for the link on the top left of the image window raised an error:

Runtime Error: desktop: Unable to create window with invalid class (imagedetail : image.id-00002)

This is the code (campaign\record_image.xml starting line 97):

function onClickRelease()
Interface.openWindow("imagedetail", window.getDatabaseNode());
return true;
end

Indeed, the imagedetail window class doesn't exist anywhere.