Issue #11246: Fix PyUnicode_FromFormat("%V")

Decode the byte string from UTF-8 (with replace error handler) instead of
ISO-8859-1 (in strict mode). Patch written by Ray Allen.
diff --git a/Misc/NEWS b/Misc/NEWS
index 47f0de6..0f73b31 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,10 @@
 Core and Builtins
 -----------------
 
+- Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from
+  UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode).
+  Patch written by Ray Allen.
+
 - Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with
   a buffer struct having a NULL data pointer.