What is the bug or feature:
AttributeError: 'NoneType' object has no attribute 'itervalues'
at AnyTestHasFirstTimeFailure (/base/data/home/apps/s~findit-for-me/waterfall-backend:14537-5ff4256.408420185542511788/services/test_failure/ci_test_failure.py:266)
at GetReliableTests (/base/data/home/apps/s~findit-for-me/waterfall-backend:14537-5ff4256.408420185542511788/services/test_failure/test_try_job.py:260)
at GetParametersToScheduleTestTryJob (/base/data/home/apps/s~findit-for-me/waterfall-backend:14537-5ff4256.408420185542511788/services/test_failure/test_try_job.py:245)
at run (/base/data/home/apps/s~findit-for-me/waterfall-backend:14537-5ff4256.408420185542511788/pipelines/test_failure/start_test_try_job_pipeline.py:39)
at evaluate (/base/data/home/apps/s~findit-for-me/waterfall-backend:14537-5ff4256.408420185542511788/infra_api_clients/../third_party/pipeline/pipeline.py:2207)

Context or examples:

https://pantheon.corp.google.com/errors/CNCGydLg7tWEkQE?time=P30D&project=findit-for-me


Expected: