// Invalid titles. Bug 21776: The interwikis must redirect even if the page name is empty.
if ( is_null( $this->context->title ) || ( ( $this->context->title->getDBkey() == '' ) && ( $this->context->title->getInterwiki() == '' ) ) ) {
$this->context->title = SpecialPage::getTitleFor( 'Badtitle' );
// Invalid titles. Bug 21776: The interwikis must redirect even if the page name is empty.
if ( is_null( $this->context->title ) || ( ( $this->context->title->getDBkey() == '' ) && ( $this->context->title->getInterwiki() == '' ) ) ) {
$this->context->title = SpecialPage::getTitleFor( 'Badtitle' );