Latest version
If neither page nor page_id is set, wiki/index.php doesn't check if home page exists before defaulting to the list view.
the line: if ( $gBitSystem->getConfig( 'wiki_disable_auto_home' ) ) {
needs to be: if( $gBitSystem->getConfig( 'wiki_disable_auto_home' ) and !($gHome->pageExists( $wikiHome )) ) {