Fix save_megatron_model deadlock: pass fully_parallel_save=False during conversion#2226

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nic-nvidia wants to merge 2 commits intoNVIDIA-NeMo:mainfrom

nic-nvidia:fix/save-megatron-model-deadlock

Commits on Apr 8, 2026

Fix save_megatron_model deadlock with vLLM inference workers
nic-nvidia
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Also disable validate_access_integrity during conversion save
nic-nvidia
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