Ticket #16975: 16975.diff

wp-includes/js/autosave.dev.js

@@ -161 +161 @@
                                 samplepermalinknonce: jQuery('#samplepermalinknonce').val()
                         },
                         function(data) {
-                                jQuery('#edit-slug-box').html(data);
-                                makeSlugeditClickable();
+                                if ( data === '-1' ) {
+                                        jQuery('#edit-slug-box').html('');
+                                } else {
+                                        jQuery('#edit-slug-box').html(data);
+                                        makeSlugeditClickable();
+                                }
                         }
                 );
         }