Wikimedia Bugzilla is closed!

I'm guessing it's because there are no gendered NSs setup in MessagesCs.php, and likely no relevant extra site config (if necessary)

ie for Pt-br

$namespaceGenderAliases = array(
	NS_USER => array( 'male' => 'Usuário', 'female' => 'Usuária' ),
	NS_USER_TALK => array( 'male' => 'Usuário_Discussão', 'female' => 'Usuária_Discussão' ),
);

Indeed. What you see in InitializeSettings.php is namespace aliases. Gender feature needs explicit application. Can you provide the forms in above format for mediawiki (and for projects if customisation needed)?

$namespaceGenderAliases = array(
    NS_USER => array( 'male' => 'Wikipedista', 'female' => 'Wikipedistka' ),
    NS_USER_TALK => array( 'male' => 'Diskuse s wikipedistou', 'female' =>
'Diskuse s wikipedistkou' ),
);

$namespaceGenderAliases = array(
    NS_USER => array( 'male' => 'Uživatel', 'female' => 'Uživatelka' ),
    NS_USER_TALK => array( 'male' => 'Diskuse s uživatelem', 'female' =>
'Diskuse s uživatelkou' ),
);

for User (general use for mediawiki on other projects)

Mw part in r107270.

(In reply to comment #3)
> $namespaceGenderAliases = array(
>     NS_USER => array( 'male' => 'Wikipedista', 'female' => 'Wikipedistka' ),
>     NS_USER_TALK => array( 'male' => 'Diskuse s wikipedistou', 'female' =>
> 'Diskuse s wikipedistkou' ),
> );

+shell

Enabled for cswiki.