Help:$smwgShowHiddenCategories

is a configuration parameter that sets whether to omit categories marked with the behaviour switch  from the annotation process. The configuration parameter was introduced in and deprecated with .CiteRef::gh:smw:2802

Default setting
This means that if a category is updated either being hidden or visible, pages need to be refreshed to ensure that the "StoreUpdater" can make use of the changed environment.

Changing the default setting
To modify the setting to this configuration parameter, add one of the following lines to your "LocalSettings.php" file after the  call:

This means that hidden categories are discarded during the parsing process.
 * Prevent categories from being shown