Initialize structseq types only once.
diff --git a/Misc/NEWS b/Misc/NEWS
index 02dcd0a..0f70378 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@
Core and builtins
-----------------
+- All uses of PyStructSequence_InitType have been changed to initialize
+ the type objects only once, even if the interpreter is initialized
+ multiple times.
+
- Bug #1454485, array.array('u') could crash the interpreter. This was
due to PyArgs_ParseTuple(args, 'u#', ...) trying to convert buffers (strings)
to unicode when it didn't make sense. 'u#' now requires a unicode string.