Document non-reproducibility when in_order=False in ParallelMapper#1523
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divyanshk merged 2 commits intometa-pytorch:mainfrom Apr 20, 2026
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This PR documents that ParallelMapper does not guarantee reproducible ordering
or state when in_order=False by adding an explicit warning to the class
docstring. This aligns documented behavior with current semantics and
addresses #1405.