nets widget - allow all children of specified parent net regardless of network

include/contact_widgets.php

@@ -61,6 +61,9 @@ function networks_widget($baseurl,$selected = '') {
 		}
 	}
 
+	if(count($nets) < 2)
+		return '';
+
 	return replace_macros(get_markup_template('nets.tpl'),array(
 		'$title' => t('Networks'),
 		'$desc' => '',

mod/network.php

@@ -466,7 +466,7 @@ function network_content(&$a, $update = 0) {
 				AND `contact`.`id` = `item`.`contact-id`
 				AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 				AND `item`.`parent` IN ( %s )
-				$sql_extra $sql_nets",
+				$sql_extra ",
 				intval(local_user()),
 				dbesc($parents_str)
 			);