Issue #9136: Fix 'dictionary changed size during iteration'
RuntimeError produced when profiling the decimal module.  This was
due to a dangerous iteration over 'locals()' in Context.__init__.
(Backport of r82656 from release27-maint.)
diff --git a/Misc/NEWS b/Misc/NEWS
index 70f8853..0efac1b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -81,6 +81,10 @@
 Library
 -------
 
+- Issue #9136: Fix 'dictionary changed size during iteration'
+  RuntimeError produced when profiling the decimal module.  This was
+  due to a dangerous iteration over 'locals()' in Context.__init__.
+
 - Fix extreme speed issue in Decimal.pow when the base is an exact
   power of 10 and the exponent is tiny (for example,
   Decimal(10) ** Decimal('1e-999999999')).