Index: path.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/path/path.module,v
retrieving revision 1.105.2.2
diff -u -r1.105.2.2 path.module
--- path.module	11 Feb 2008 05:11:58 -0000	1.105.2.2
+++ path.module	29 Oct 2008 10:01:38 -0000
@@ -156,16 +156,10 @@
       }
       drupal_clear_path_cache();
     }
-    else if ($path_count == 0 && $alias_count == 1) {
+    else {  // ($alias_count == 1)
       db_query("UPDATE {url_alias} SET src = '%s' WHERE dst = '%s'", $path, $alias);
       drupal_clear_path_cache();
     }
-    else if ($path_count == 1 && $alias_count == 1) {
-      // This will delete the path that alias was originally pointing to:
-      path_set_alias(NULL, $alias);
-      path_set_alias($path);
-      path_set_alias($path, $alias);
-    }
   }
 }