use reset registry

Author: tn3rb

tests/testcases/core/services/loaders/CachingLoaderTest.php

@@ -43,7 +43,7 @@ public function set_up()
         //different persistence tests
         if (! CachingLoaderTest::$caching_loader instanceof LoaderDecorator) {
             CachingLoaderTest::$caching_loader = new CachingLoaderMock(
-                new CoreLoader(EE_Registry::instance()),
+                new CoreLoader(EE_Registry::reset()),
                 new LooseCollection(''),
                 new ObjectIdentifier(new ClassInterfaceCache())
             );