Author: rainman
Description:
SimpleSearch searches only in the main namespace (namespaces=0) and ignores user/site-configured default search namespaces, as well as checked namespaces in advanced search.
This works with mwsuggest.js and is implemented in function os_getNamespaces()
Raised on en.wp VPT:
http://en.wikipedia.org/wiki/WP:VPT#Search_bar
See Also:
T67753: Provide way to override the behavior of default search box