[fix] Preserve original AutoConfig in MegatronWorker.init_configs#1727

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dinhxuanvu wants to merge 3 commits into

NovaSky-AI:mainfrom

dinhxuanvu:vdinh/fix-megatron-worker-config-mutation

Commits on May 29, 2026

[fix] Preserve original AutoConfig in MegatronWorker.init_configs
dinhxuanvu
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Commits on May 30, 2026

[test] Add CPU unit tests for update_model_config non-mutating contract
dinhxuanvu
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[test] Rename test_utils.py to test_update_model_config.py
dinhxuanvu
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