_PyUnicode_CheckConsistency() checks utf8 field consistency
diff --git a/Include/unicodeobject.h b/Include/unicodeobject.h
index d7c9fa7..1b6d1c9 100644
--- a/Include/unicodeobject.h
+++ b/Include/unicodeobject.h
@@ -225,6 +225,7 @@
* compact = 1
* ready = 1
* ascii = 0
+ * utf8 != data
- string created by the legacy API (not ready):
@@ -246,6 +247,7 @@
* compact = 0
* ready = 1
* data.any is not NULL
+ * utf8 = data if ascii is 1
String created by the legacy API becomes ready when calling
PyUnicode_READY().