fix: UTC-33: Fix issue with CSV exports with repeater tag

[robot-ci-heartex]

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Please ensure that all linked upstream Pull Requests are merged before proceeding with this one.

• fix: UTC-33: Fix issue with CSV exports with repeater tag label-studio-sdk#469

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.50%. Comparing base (2df02dd) to head (75b51ae).
Report is 1 commits behind head on develop.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7641   +/-   ##
========================================
  Coverage    78.50%   78.50%           
========================================
  Files          197      197           
  Lines        16010    16010           
========================================
  Hits         12568    12568           
  Misses        3442     3442           

Flag	Coverage Δ
pytests	78.50% <ø> (ø)

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