fix: Fix perfect groupby

[ritchie46]

fixes #19452

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.94%. Comparing base (69c9c3a) to head (d094073).
Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #19461      +/-   ##
==========================================
- Coverage   80.03%   79.94%   -0.10%     
==========================================
  Files        1532     1534       +2     
  Lines      210749   211063     +314     
  Branches     2442     2444       +2     
==========================================
+ Hits       168676   168732      +56     
- Misses      41518    41776     +258     
  Partials      555      555              

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