DEBUG: Properly update _greatest_backbone_count

[nobutoba]

The current implementation forgets updating _greatest_backbone_count within the get_next_backbone_candidates() function.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f9be813) 99.27% compared to head (a5165a1) 99.27%.

❗ Current head a5165a1 differs from pull request most recent head dc4589e. Consider uploading reports for the commit dc4589e to get more accurate results

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Additional details and impacted files

@@           Coverage Diff           @@
##           master      #37   +/-   ##
=======================================
  Coverage   99.27%   99.27%           
=======================================
  Files           4        4           
  Lines         550      551    +1     
=======================================
+ Hits          546      547    +1     
  Misses          4        4           

Files	Coverage Δ
grandiso/__init__.py	98.44% <100.00%> (+0.01%)	⬆️

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[j6k4m8]

AWESOME, thank you for the super attentive catch and bugfix, @nobutoba!! I really appreciate you contributing to the repo :)

[nobutoba]

I'm having fun reading the code. Thank you for the quick response!