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-rw-r--r--Zend/zend_inheritance.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/Zend/zend_inheritance.c b/Zend/zend_inheritance.c
index 64e7407f12..9b96a4a479 100644
--- a/Zend/zend_inheritance.c
+++ b/Zend/zend_inheritance.c
@@ -821,7 +821,13 @@ ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent
do {
dst--;
src--;
- ZVAL_MAKE_REF(src);
+ if (parent_ce->type == ZEND_INTERNAL_CLASS) {
+ if (!Z_ISREF_P(src)) {
+ ZVAL_NEW_PERSISTENT_REF(src, src);
+ }
+ } else {
+ ZVAL_MAKE_REF(src);
+ }
ZVAL_COPY_VALUE(dst, src);
Z_ADDREF_P(dst);
if (Z_CONSTANT_P(Z_REFVAL_P(dst))) {