Generator waterfall.flake.recursive_flake_pipeline.RecursiveFlakePipeline(*(u'ag9zfmZpbmRpdC1mb3ItbWVypwELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCJxY2hyb21pdW0ud2luL1dpbjcgVGVzdHMgKGRiZykoMSkvNjE4NDUvYnJvd3Nlcl90ZXN0cy9VMU5NVlVsWGIzSnJaWEpHWlhSamFGUmxjM1F1VFdsNFpXUkRiMjUwWlc1MFUzV... (1039 bytes), **{})#b1bd2b6f96be4bf79e983e4ebb0b4bb2 raised exception. AssertionError:  (/base/data/home/apps/s~findit-for-me/waterfall-backend:10909-fba6c55.402923779948242132/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py:2434)
Traceback (most recent call last):
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:10909-fba6c55.402923779948242132/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 2207, in evaluate
    yielded = pipeline_iter.send(next_value)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:10909-fba6c55.402923779948242132/waterfall/flake/recursive_flake_pipeline.py", line 456, in run
    analysis, iterations, timeout_per_test)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:10909-fba6c55.402923779948242132/waterfall/flake/recursive_flake_pipeline.py", line 236, in _CalculateNumberOfIterations
    assert iterations_this_loop > 0
AssertionError

https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVypwELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCJxY2hyb21pdW0ud2luL1dpbjcgVGVzdHMgKGRiZykoMSkvNjE4NDUvYnJvd3Nlcl90ZXN0cy9VMU5NVlVsWGIzSnJaWEpHWlhSamFGUmxjM1F1VFdsNFpXUkRiMjUwWlc1MFUzVmlSbkpoYldVdk13PT0MCxITTWFzdGVyRmxha2VBbmFseXNpcxgBDA&debug=1

When rerunning that analysis on just the build range, the assertion fires that iterations > 0 for running a group of iterations at a time