public function doLogout() {
	$session = $this->getRequest()->getSession();
	$accountType = MediaWikiServices::getInstance()->getUserIdentityUtils()->getShortUserTypeInternal( $this );
	if ( !$session->canSetUser() ) {
		LoggerFactory::getInstance( 'session' )
			->warning( __METHOD__ . ": Cannot log out of an immutable session" );
		$error = 'immutable';
	} elseif ( !$session->getUser()->equals( $this ) ) {
		LoggerFactory::getInstance( 'session' )
			->warning( __METHOD__ .
				": Cannot log user \"$this\" out of a user \"{$session->getUser()}\"'s session"
			);
		// But we still may as well make this user object anon
		$this->clearInstanceCache( 'defaults' );
		$error = 'wronguser';
	} else {
		$this->clearInstanceCache( 'defaults' );
		$delay = $session->delaySave();
		$session->unpersist(); // Clear cookies (T127436)
		$session->setLoggedOutTimestamp( time() );
		$session->setUser( new User );
		$session->set( 'wsUserID', 0 ); // Other code expects this
		$session->resetAllTokens();
		ScopedCallback::consume( $delay );
		$error = false;
	}
	LoggerFactory::getInstance( 'authevents' )->info( 'Logout', [
		'event' => 'logout',
		'successful' => $error === false,
		'status' => $error ?: 'success',
		'accountType' => $accountType,
	] );
}