Python Ice/ami test failures

[pepone]

testing sent callback... C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py:324: DeprecationWarning: currentThread() is deprecated, use current_thread() instead
  self._thread = threading.currentThread()
C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py:330: DeprecationWarning: currentThread() is deprecated, use current_thread() instead
  test(self._thread != threading.currentThread())
ok
testing batch requests with proxy... C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py:337: DeprecationWarning: currentThread() is deprecated, use current_thread() instead
  self._thread = threading.currentThread()
C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py:344: DeprecationWarning: currentThread() is deprecated, use current_thread() instead
  test(self._thread != threading.currentThread())
Traceback (most recent call last):
  File "C:\Users\jose\source\repos\3.8\ice\python\test\TestHelper.py", line 89, in run
    helper.run(sys.argv[2:])
  File "C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\Collocated.py", line 47, in run
    AllTests.allTestsFuture(self, communicator, True)
  File "C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py", line 796, in allTestsFuture
    test(f.done())
  File "C:\Users\jose\source\repos\3.8\ice\python\test\Ice\ami\AllTests.py", line 15, in test
    raise RuntimeError("test assertion failed")
RuntimeError: test assertion failed
unexpected exit status: expected: 0, got 1

Failure corresponds with this code:

ice/python/test/Ice/ami/AllTests.py

Lines 790 to 796 in 45a69a1

	cb = FutureFlushCallback()
	f = b1.ice_flushBatchRequestsAsync()
	f.add_sent_callback(cb.sent)
	f.add_sent_callback_async(cb.sentAsync)
	cb.check()
	test(f.is_sent())
	test(f.done())

Seems to only fail with the collocated test case. I hit this with python_d on Windows in case this matters.