PV allow search on null packet

[jmthomas]

closes #1937

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.72%. Comparing base (7d417f1) to head (2e99692).
Report is 8 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1941   +/-   ##
=======================================
  Coverage   76.72%   76.72%           
=======================================
  Files         628      628           
  Lines       46643    46643           
  Branches      755      755           
=======================================
+ Hits        35788    35789    +1     
+ Misses      10772    10771    -1     
  Partials       83       83           

Flag	Coverage Δ
python	84.22% <ø> (+<0.01%)	⬆️
ruby-api	48.39% <ø> (ø)
ruby-backend	82.60% <ø> (ø)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud