Autosave: Don't save an autosave unnecessarily when the post editor loads and TinyMCE is the default editor.

Delete such useless autosaves when we detect them in edit-form-advanced.php.

see #7392.



git-svn-id: http://core.svn.wordpress.org/trunk@24787 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit-form-advanced.php

@@ -98,6 +98,9 @@ if ( $autosave && mysql2date( 'U', $autosave->post_modified_gmt, false ) > mysql
 			break;
 		}
 	}
+	// If this autosave isn't different from the current post, begone.
+	if ( ! $notice )
+		wp_delete_post_revision( $autosave->ID );
 	unset($autosave_field, $_autosave_field);
 }