Some feature requests on the bugtracker are marked as Duplicates, but there is not mention of the original bug. Here is one example:
http://bugs.calibre-ebook.com/ticket/2297
The bug mentions that the feature is question is already on the TODO list. Where is this TODO list? I could not find it here on the forum, on the Calibre site, or in the User Manual. Google could not find it either.
Thanks.