Sign0 fit method parametrization; small fixes to diagnostics tasks

3 jobs for master in 8 minutes and 1 second (queued for 2 seconds)
Status Name Job ID Coverage
  Unittest
failed unittest_python_3.7 #8547

00:06:30

passed unittest_python_3.7_lite #8548

00:01:31

 
  Docs
skipped pages #8549
 
Name Stage Failure
failed
unittest_python_3.7 Unittest
    Proj = np.vstack({tuple(row) for row in Proj})

-- Docs: https://docs.pytest.org/en/stable/warnings.html
=========================== short test summary info ============================
FAILED tests/test_pipeline.py::TestPipeline::test_pipeline_fit_sign0 - Assert...
====== 1 failed, 31 passed, 12 skipped, 14 warnings in 305.60s (0:05:05) =======
make: Leaving directory '/test/package'
make: *** [Makefile:42: test] Error 1
ERROR: Job failed: exit code 1