Bug 413

[marcpaterno]

This adds a test that demonstrates the bug, and then fixes the bug.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (two_point_refactor@18bf57b). Click here to learn what that means.

Additional details and impacted files

@@                 Coverage Diff                  @@
##             two_point_refactor    #415   +/-   ##
====================================================
  Coverage                      ?   93.0%           
====================================================
  Files                         ?      35           
  Lines                         ?    2663           
  Branches                      ?       0           
====================================================
  Hits                          ?    2478           
  Misses                        ?     185           
  Partials                      ?       0           

Files	Coverage Δ
...own/likelihood/gauss_family/statistic/two_point.py	58.3% <100.0%> (ø)
firecrown/version.py	100.0% <100.0%> (ø)