Index: Zend/zend_operators.c
===================================================================
RCS file: /repository/ZendEngine2/zend_operators.c,v
retrieving revision 1.208.2.4.2.21
diff -u -p -d -r1.208.2.4.2.21 zend_operators.c
--- Zend/zend_operators.c	23 Apr 2007 09:56:30 -0000	1.208.2.4.2.21
+++ Zend/zend_operators.c	6 Jun 2007 11:24:12 -0000
@@ -1402,6 +1402,11 @@ ZEND_API int compare_function(zval *resu
 
 	/* If both are objects sharing the same comparision handler then use is */
 	if (eq_comp) {
+		if (Z_OBJ_HANDLE_P(op1) == Z_OBJ_HANDLE_P(op2)) {
+			/* object handles are identical, apprently this is the same object */
+			ZVAL_LONG(result, 0);
+			COMPARE_RETURN_AND_FREE(SUCCESS);
+		}
 		ZVAL_LONG(result, Z_OBJ_HT_P(op1)->compare_objects(op1, op2 TSRMLS_CC));
 		COMPARE_RETURN_AND_FREE(SUCCESS);
 	}