[pull] main from django:main - #539
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…errides. The fetch modes feature made all query iteration paths (ModelIterable, RawModelIterable, and RelatedPopulator) call Model.from_db() with a fetch_mode keyword argument. This crashed with a TypeError for models overriding from_db() with the previously documented signature from_db(cls, db, field_names, values). Query iteration now detects, once per query rather than per row, whether the model's from_db() accepts the fetch_mode keyword argument (or **kwargs) and calls old-style overrides without it, emitting a RemovedInDjango70Warning asking authors to add the argument. Regression in e097e8a.
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