Improve morph modifiers

[AurelienJaquier]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 59.66%. Comparing base (a099656) to head (52401b0).
Report is 23 commits behind head on main.

❗ Current head 52401b0 differs from pull request most recent head 63b40a5. Consider uploading reports for the commit 63b40a5 to get more accurate results

Files	Patch %	Lines
bluepyemodel/evaluation/modifiers.py	25.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #135      +/-   ##
==========================================
+ Coverage   59.33%   59.66%   +0.33%     
==========================================
  Files         106      108       +2     
  Lines        7738     7798      +60     
==========================================
+ Hits         4591     4653      +62     
+ Misses       3147     3145       -2     

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