Issue 10242. Switching unittest.TestCase.assertItemsEqual to use a collections.Counter under the hood.
This fixes bugs when comparing collections of items like sets that can be sorted without raising an exception but where sorting has no meaning.
diff --git a/Misc/NEWS b/Misc/NEWS
index b1b0265..dc80eb8 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -22,6 +22,9 @@
Library
-------
+- Issue #10242: unittest.TestCase.assertItemsEqual makes too many assumgptions
+ about input.
+
- Issue #10611: SystemExit should not cause a unittest test run to exit.
- Issue #6791: Limit header line length (to 65535 bytes) in http.client,