Ticket #35084: 35084.5.diff

src/wp-includes/post.php

@@ -4286 +4286 @@
  * Sub pages will be in the "directory" under the parent page post name.
  *
  * @since 1.5.0
+ * @since 4.4.0 Do not add parent slugs to orphaned pages 
+ * @since 4.4.1 Do not add parent slugs when the parent does not exist
  *
  * @param WP_Post|object|int $page Page object or page ID.
  * @return string|false Page URI, false on error.
@@ -4300 +4302 @@
 
         foreach ( $page->ancestors as $parent ) {
                 $parent = get_post( $parent );
-                if ( 'publish' === $parent->post_status ) {
+                if (!empty( $parent ) ) {
                         $uri = $parent->post_name . '/' . $uri;
                 }
         }

tests/phpunit/tests/post.php

@@ -674 +674 @@
                 // try the child normally
                 $this->assertEquals( 'parent/child', get_page_uri( $child_id ) );
 
-                // now delete the parent and check
-                wp_delete_post( $parent_id );
+                // now delete the parent from the database and check
+                wp_delete_post( $parent_id, true );
                 $this->assertEquals( 'child', get_page_uri( $child_id ) );
         }