merge fix in unicodeobject.c

Author: lukasstadler

graalpython/com.oracle.graal.python.cext/src/unicodeobject.c

@@ -109,7 +109,7 @@ PyUnicodeObject* unicode_subtype_new(PyTypeObject *type, PyObject *unicode) {
     _PyUnicode_STATE(self).interned = 0;
     _PyUnicode_STATE(self).kind = kind;
     _PyUnicode_STATE(self).compact = 0;
-    _PyUnicode_STATE(self).ascii = _PyUnicode_STATE(unicode).ascii;
+    _PyUnicode_STATE(self).ascii = GET_SLOT_SPECIAL(unicode, PyASCIIObject, state_ascii, state.ascii);
     _PyUnicode_STATE(self).ready = 1;
     _PyUnicode_WSTR(self) = NULL;
     _PyUnicode_UTF8_LENGTH(self) = 0;