This template may have no transclusions. This is because it is substituted by a tool or script, it is used as part of a short-term or less active Wikipedia process, or for some other reason.
If an editor simply copies the source code of a reference or citation (for example, the <ref>...</ref> nested with the citation), the citation will become duplicated in the reference list in the footnotes. It needs to be fixed by using named references:
<refname="name">content</ref>
Advanced editors can use AutoWikiBrowser and its DuplicateNamedReferences function as part of automatic fixes of common issues it runs on a page will automatically fix it.
