Updates for V4 RFR2

[jmbhughes]

• make sure reference time is always set

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.85%. Comparing base (db58298) to head (999ef43).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
+ Coverage   89.63%   89.85%   +0.22%     
==========================================
  Files          16       16              
  Lines         762      779      +17     
==========================================
+ Hits          683      700      +17     
  Misses         79       79              

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[jmbhughes]

pre-commit.ci autofix