test_doctest.py test_pdb_set_trace_nested():  A new test from Jim Fulton
showing that doctest's pdb.set_trace() support was dramatically broken.

doctest.py _OutputRedirectingPdb.trace_dispatch():  Return a local trace
function instead of (implicitly) None.  Else interaction with pdb was
bizarre, noticing only 'call' events.  Amazingly, the existing set_trace()
tests didn't care.
diff --git a/Misc/NEWS b/Misc/NEWS
index 8efa6d2..ddcf030 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -29,7 +29,10 @@
   attempt is made to execute the remaining handlers.  The last exception
   raised is re-raised.
 
-- Patch 1061679: Added `__all__` to pickletools.py.
+- ``doctest``'s new support for adding ``pdb.set_trace()`` calls to
+  doctests was broken in a dramatic but shallow way.  Fixed.
+
+- Patch 1061679: Added ``__all__`` to pickletools.py.
 
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