Ticket #24171: 24171.1.diff

wp-includes/post.php

@@ -2331 +2331 @@
         $post['post_status'] = 'trash';
         wp_insert_post($post);
 
+        if ( 'page' == $post['post_type'] ) {
+                // if the page is defined in option page_on_front or post_for_posts,
+                // adjust the corresponding options
+                if ( get_option('page_on_front') == $post_id ) {
+                        update_option('show_on_front', 'posts');
+                        delete_option('page_on_front');
+                }
+                if ( get_option('page_for_posts') == $post_id ) {
+                        delete_option('page_for_posts');
+                }
+        } else {
+                unstick_post( $post_id );
+        }
+
         wp_trash_post_comments($post_id);
 
         do_action('trashed_post', $post_id);