Issue #22570: Renamed Py_SETREF to Py_XSETREF.
diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index c7271ef..8d6e6e3 100644
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -1332,7 +1332,7 @@
         PyObject *get_doc = PyObject_GetAttrString(get, "__doc__");
         if (get_doc) {
             if (Py_TYPE(self) == &PyProperty_Type) {
-                Py_SETREF(prop->prop_doc, get_doc);
+                Py_XSETREF(prop->prop_doc, get_doc);
             }
             else {
                 /* If this is a property subclass, put __doc__