Make Gender normalize usernames

This ensures that if GENDER is fed wfEscapeWikitext()'d version
of a username, it will normalize it.

See discussion on T182800.

Note, we do not need to worry about the case of a user named
"Project:*foo" as such namespace prefixes are illegal in
usernames.

Change-Id: Ic5a8fc76c28dca43ce8e334ef1874c2673433f00

includes/parser/CoreParserFunctions.php

@@ -337,8 +337,8 @@ class CoreParserFunctions {
 		// default
 		$gender = User::getDefaultOption( 'gender' );
 
-		// allow prefix.
-		$title = Title::newFromText( $username );
+		// allow prefix and normalize (e.g. "*foo" -> "*foo" ).
+		$title = Title::newFromText( $username, NS_USER );
 
 		if ( $title && $title->inNamespace( NS_USER ) ) {
 			$username = $title->getText();

tests/phpunit/includes/parser/CoreParserFunctionsTest.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * @group Database
+ * @covers CoreParserFunctions
+ */
+class CoreParserFunctionsTest extends MediaWikiTestCase {
+
+	public function testGender() {
+		$user = User::createNew( '*Female' );
+		$user->setOption( 'gender', 'female' );
+		$user->saveSettings();
+
+		$msg = ( new RawMessage( '{{GENDER:*Female|m|f|o}}' ) )->parse();
+		$this->assertEquals( $msg, 'f', 'Works unescaped' );
+		$escapedName = wfEscapeWikiText( '*Female' );
+		$msg2 = ( new RawMessage( '{{GENDER:' . $escapedName . '|m|f|o}}' ) )
+			->parse();
+		$this->assertEquals( $msg, 'f', 'Works escaped' );
+	}
+
+}