do some duplicate check adjustments

[ludwiglierhammer]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 96.87500% with 4 lines in your changes missing coverage. Please review.

Project coverage is 82.46%. Comparing base (4e48b9c) to head (01ddb73).
Report is 42 commits behind head on main.

Files with missing lines	Patch %	Lines
cdm_reader_mapper/cdm_mapper/duplicates.py	96.52%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #119      +/-   ##
==========================================
+ Coverage   82.10%   82.46%   +0.36%     
==========================================
  Files          68       69       +1     
  Lines        2571     2641      +70     
==========================================
+ Hits         2111     2178      +67     
- Misses        460      463       +3     

Flag	Coverage Δ
unittests	82.46% <96.87%> (+0.36%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.