fix: [2.4] Fill load field list from old version load info (#35993)

[congqixia]

Cherry-pick from master
pr: #35993
See also #35959

[sre-ci-robot]

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[codecov]

Codecov Report

Attention: Patch coverage is 91.30435% with 2 lines in your changes missing coverage. Please review.

Project coverage is 85.01%. Comparing base (9de4319) to head (675c2e0).
Report is 9 commits behind head on 2.4.

Files with missing lines	Patch %	Lines
internal/querycoordv2/meta/collection_manager.go	91.30%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #36018      +/-   ##
==========================================
+ Coverage   80.27%   85.01%   +4.73%     
==========================================
  Files        1057      790     -267     
  Lines      139246   114976   -24270     
==========================================
- Hits       111779    97745   -14034     
+ Misses      23199    12956   -10243     
- Partials     4268     4275       +7     

Files with missing lines	Coverage Δ
internal/querycoordv2/meta/collection_manager.go	88.59% <91.30%> (+0.17%)	⬆️

... and 298 files with indirect coverage changes

[weiliu1031]

/lgtm