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Page 17 of 17
Explains fail-fast iteration, safe removal patterns, structural modification, and why the exception is not a concurrency guarantee.
Explains Django's nested middleware stack, short-circuiting, exceptions, and response unwinding.
Explains nested ASGI middleware ordering, reverse response flow, exception boundaries, CORS, and streaming-safe design.
Explains code execution during object reconstruction and chooses data-only formats with explicit validation.
Treats Alembic autogeneration as a candidate schema diff that still needs semantic and operational review.
Explains migration state, historical model lookup, replay safety, and the limits of migration-time models.
Keeps JSON binding, validation, writable fields, and response evolution separate from domain and persistence models.