Category:Pages using duplicate arguments in template calls

This is a maintenance category. It is used for maintenance of the Wikipedia project and is not part of the encyclopedia. It contains pages that are not articles, or it groups articles by status rather than subject. Do not include this category in content categories. This is a hidden category. It is not shown on its member pages, unless the corresponding user preference 'Show hidden categories' is set. This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. Pages are added to tracking categories through templates.

Administrators: Please do not delete this category even if it is empty! This category may be empty occasionally or even most of the time.

This category contains pages with template calls that pass the same argument (parameter value) more than once, such as {{foo|bar=1|bar=2}} and {{foo|bar|1=baz}}. When the same parameter is given a value more than once in a template, only the final value of that parameter is used to display the template.

• When checking Preview, any double parameter (and its template) will be listed in top as an error.

See Help:Duplicate parameters for more details and tips.

Other venues to find duplicates:

• Find templates in this category using PetScan
• Find Featured Articles in this category using PetScan
• Find Featured Lists in this category using PetScan
• Find Good Articles in this category using PetScan
• A script tool to list the duplicate arguments on a page is available at: User:Frietjes/findargdups
• WPCleaner detects the duplicate arguments on analyzed pages, and is able to automatically fix some of them

For a list of MediaWiki-populated tracking categories, see Special:TrackingCategories.