On the above website the Upstream URL is set to http://incubator.apache.org/couchdb/ (which is wrong). The .spec: http://cvs.fedoraproject.org/viewvc/rpms/couchdb/F-12/couchdb.spec?view=markup already points to the right one: http://couchdb.apache.org/
Just a note, the incorrect URL currently redirects, so no deep panic until it gets resolved. I'm reassigning to release notes component and setting it to needinfo on the assignee. I'm fairly certain that list is auto-generated from .spec files, meaning it's already fixed (or should be fixed) in the release notes RPM. The lack in appearing for Beta was probably due to a schedule difference in when the URL was set in the release notes RPM and in the couchdb RPM. Thank you for checking the notes with that level of detail, it is much, much appreciated.
The list is actually generated from the repodata. In order to fix the problem, it needs to be fixed in the repodata (which I suspect may come from the spec). As of 10/27 the repodata still had the old URL. If the repodata is fixed before the next time the tables are generated (likely very close to release day) then the URL will be fixed in the notes.
Commit d7914003938e5421e54a15713a0be6eb8652a412
fedora-release-notes-12.0.0-4