RSS feed does not use an id field to keep unique article entries

When subscribing to a Confluence RSS feed from a RSS feedreader (tested on Feedreader 3.09), when the article is posted for the first time, its status is (created) and after every subsequent updates to this page (RSS feed), a new entry is created in the Feedreader with the same name for the RSS feed but with status (updated).

This leads to duplicate entries of the RSS feed in the feedreader.

Please update the RSS feed to include a unique ID field so that when the RSS Feed content is changed, article is identified as already being present and the content is updated, instead of making a duplicate entry in the Feedreader.