fix: exception fields structure

[uoboda-splunk]

No description provided.

[codecov-commenter]

Codecov Report

Merging #707 (9410d2e) into main (525ed4a) will decrease coverage by 0.15%.
The diff coverage is 15.78%.

@@            Coverage Diff             @@
##             main     #707      +/-   ##
==========================================
- Coverage   87.02%   86.86%   -0.16%     
==========================================
  Files          51       51              
  Lines        2766     2771       +5     
==========================================
  Hits         2407     2407              
- Misses        359      364       +5     

Impacted Files	Coverage Δ
...unk_addon/standard_lib/cim_tests/test_generator.py	80.45% <0.00%> (-2.88%)	⬇️
..._addon/standard_lib/fields_tests/test_generator.py	59.80% <0.00%> (-1.20%)	⬇️
...on/standard_lib/sample_generation/sample_stanza.py	88.78% <100.00%> (ø)

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🎉 This PR is included in version 4.0.3 🎉

The release is available on:

• v4.0.3
• GitHub release

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