Any breaking changes to this template, including moving it or nominating it for deletion, must be communicated in advance to Twinkle's users and maintainers at Wikipedia talk:Twinkle. The standard installation of Twinkle relies on this template. Thank you.
Template {{Rcat shell}} is an alias for the Redirect category shell template, which may be used to add as many appropriate rcats as needed, usually from one to seven, along with their parameters, to a redirect. For more information see the documentation on its template page. This rcat may also tag a redirect individually:
#REDIRECT [[(target page name)]]
{{R from duplicated article}}
Apply this rcat to a redirected page name that had the same or very similar subject matter as another article or other project page. This must be done in order to preserve the edit-history attributions of the redirect after the content was merged into the target page.
Since these redirects are former articles, they have revision histories of prior edits; however, they should not be history merged with their targets. This is because in most cases they were originally created in good faith as separate distinct articles, without the creator having knowledge of the pre-existence of another article on exactly the same subject. This situation is different from a cut-and-paste move where a history merge would be required.