Ticket #27015: 27015.2.patch

src/wp-includes/query.php

@@ -3700 +3700 @@
                         $page_for_posts = get_option('page_for_posts');
                         $this->queried_object = get_post( $page_for_posts );
                         $this->queried_object_id = (int) $this->queried_object->ID;
-                } elseif ( $this->is_singular && !is_null($this->post) ) {
-                        $this->queried_object = $this->post;
-                        $this->queried_object_id = (int) $this->post->ID;
+                } elseif ( $this->is_singular ) {
+                        if ( isset( $this->post ) ) {
+                                $this->queried_object = $this->post;
+                                $this->queried_object_id = (int) $this->post->ID;
+                        } elseif ( $this->get('p') ) {
+                                $this->queried_object = get_post( $this->get('p'));
+                                $this->queried_object_id = $this->get('p');
+                        } elseif ( $this->get('page_id') ) {
+                                $this->queried_object = get_post( $this->get('page_id'));
+                                $this->queried_object_id = $this->get('page_id');
+                        } elseif ( $this->get('name') ) {
+                                $this->queried_object = $this->post = get_page_by_path( 
+                                        $this->get('name'), 
+                                        OBJECT, 
+                                        $this->get('post_type') ? $this->get('post_type') :'post'
+                                );
+                                $this->queried_object_id = (int) $this->post->ID;
+                        }
                 } elseif ( $this->is_author ) {
-                        $this->queried_object_id = (int) $this->get('author');
-                        $this->queried_object = get_userdata( $this->queried_object_id );
+                        if ( $this->get('author') ) {
+                                $this->queried_object_id = (int) $this->get('author');
+                                $this->queried_object = get_userdata( $this->queried_object_id );
+                        } elseif ($this->get('author_name')) {
+                                $this->queried_object = get_user_by( 'login', $this->get('author_name') );
+                                $this->queried_object_id = (int) $this->queried_object->ID;             
+                        }
                 }
 
                 return $this->queried_object;