Patch #1674228: when assigning a slice (old-style), check for the
sq_ass_slice instead of the sq_slice slot.
diff --git a/Misc/NEWS b/Misc/NEWS
index c59a15a..1141ecf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and builtins
 -----------------
 
+- Patch #1674228: when assigning a slice (old-style), check for the
+  sq_ass_slice instead of the sq_slice slot.
+
 - When printing an unraisable error, don't print exceptions. before the name.
   This duplicates the behavior whening normally printing exceptions.