Ticket #17470: patch.diff

wp-admin/includes/post.php

@@ -1284 +1284 @@
 }
 
 /**
+ * Outputs the notice message to say that this page is used for posts and content will be ignored.
+ *
+ * @since 3.2
+ * @return none
+ */
+function _admin_notice_page_for_posts() {
+        $message = __( 'This page is used to display a list of posts; content here will not be displayed. You can change this in your <a href="%s">Reading Settings</a>.' );
+        echo '<div class="error"><p>' . sprintf( $message, esc_url( admin_url( 'options-reading.php' ) ) ) . '</p></div>';
+}
+
+/**
  * Creates autosave data for the specified post from $_POST data.
  *
  * @package WordPress

wp-admin/post.php

@@ -176 +176 @@
                 wp_enqueue_script('autosave');
         }
 
+        if ( $post_id == get_option( 'page_for_posts' ) ) {
+                add_action( 'admin_notices', '_admin_notice_page_for_posts' );
+        }
+
         $title = $post_type_object->labels->edit_item;
         $post = get_post_to_edit($post_id);