1914.3.diff on Ticket #1914 – Attachment – WordPress Trac

src/wp-admin/includes/post.php

                         $view_link = get_preview_post_link( $post, array(), $draft_link );
                         $preview_target = " target='wp-preview-{$post->ID}'";
                 } else {
                         if ( 'publish' === $post->post_status ) {
+                        if ( 'publish' === $post->post_status || 'attachment' === $post->post_type ) {
                                 $view_link = get_permalink( $post );
                         } else {
                                 // Allow non-published (private, future) to be viewed at a pretty permalink.
 …
                 $return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
                 if ( false !== $view_link ) {
                         $return .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $permalink . "</a>\n";
+                        $return .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $view_link . "</a>\n";
                 } else {
                         $return .= '<span id="sample-permalink">' . $permalink . "</span>\n";
+                }

         $post = get_post( $post );
         $parent = ( $post->post_parent > 0 && $post->post_parent != $post->ID ) ? get_post( $post->post_parent ) : false;
+        if ( $parent && ! in_array( $parent->post_type, get_post_types() ) ) {
+                $parent = false;
+        }
         if ( $wp_rewrite->using_permalinks() && $parent ) {
                 if ( 'page' == $parent->post_type )
 …
                 if ( ! $leavename )
                         $link = str_replace( '%postname%', $name, $link );
+        } elseif ( $wp_rewrite->using_permalinks() && ! $leavename ) {
+                $link = home_url( user_trailingslashit( $post->post_name ) );
+        }
         if ( ! $link )

                 // Check post status to determine if post should be displayed.
                 if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {
                         $status = get_post_status($this->posts[0]);
+                        if ( 'attachment' === $this->posts[0]->post_type && 0 === (int) $this->posts[0]->post_parent ) {
+                                $this->is_page = false;
+                                $this->is_single = true;
+                                $this->is_attachment = true;
+                        }
                         $post_status_obj = get_post_status_object($status);
                         //$type = get_post_type($this->posts[0]);