Ticket #42299: 42299.diff

src/wp-includes/ms-load.php

@@ -226 +226 @@
         }
 
         $args = array(
-                'domain__in' => $domains,
-                'path__in' => $paths,
                 'number' => 1,
         );
 
         if ( count( $domains ) > 1 ) {
+                $args['domain__in']               = $domains;
                 $args['orderby']['domain_length'] = 'DESC';
+        } else {
+                $args['domain'] = array_shift( $domains );
         }
 
         if ( count( $paths ) > 1 ) {
+                $args['path__in']               = $paths;
                 $args['orderby']['path_length'] = 'DESC';
+        } else {
+                $args['path'] = array_shift( $paths );
         }
 
         $result = get_sites( $args );