update collection.find to support nested fields

[aMahanna]

db.collection().find(...) was previously not working for nested fields

Happy to go with an alternative solution if there's an easier way

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.94%. Comparing base (8e6aaca) to head (e4b5652).
Report is 11 commits behind head on main.

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HEAD has 2 uploads less than BASE

Flag	BASE (8e6aaca)	HEAD (e4b5652)
	3	1

Additional details and impacted files

@@ Coverage Diff @@ ## main #354 +/- ## =========================================== - Coverage 95.94% 83.94% -12.00%  =========================================== Files 26 26 Lines 4296 4299 +3 =========================================== - Hits 4122 3609 -513  - Misses 174 690 +516 

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