bpo-40834: Fix truncate when sending str object with channel (GH-20555)
diff --git a/Python/pystate.c b/Python/pystate.c
index 72d8b36..d0cbf5c 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -1726,7 +1726,7 @@
struct _shared_str_data *shared = PyMem_NEW(struct _shared_str_data, 1);
shared->kind = PyUnicode_KIND(obj);
shared->buffer = PyUnicode_DATA(obj);
- shared->len = PyUnicode_GET_LENGTH(obj) - 1;
+ shared->len = PyUnicode_GET_LENGTH(obj);
data->data = (void *)shared;
Py_INCREF(obj);
data->obj = obj; // Will be "released" (decref'ed) when data released.