Fix marshaling bug

[grcevski]

I recently changed the data for the HTTP2 connections, but I accidentally broke the restoring of HTTP2 connections which are not detected initially.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.69%. Comparing base (c6e7e12) to head (8307d55).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1690      +/-   ##
==========================================
- Coverage   69.76%   69.69%   -0.07%     
==========================================
  Files         209      209              
  Lines       21006    21006              
==========================================
- Hits        14655    14641      -14     
- Misses       5649     5659      +10     
- Partials      702      706       +4     

Flag	Coverage Δ
integration-test	54.15% <100.00%> (+0.09%)	⬆️
k8s-integration-test	54.23% <0.00%> (-0.24%)	⬇️
oats-test	35.19% <100.00%> (+0.03%)	⬆️
unittests	46.23% <0.00%> (ø)

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