For a schema-shaped or constructor-shaped failure, first rebuild the test database with the runner's create-database option or an equivalent clean operation. Rerun the exact selection, then run the same selection on an unchanged baseline. Attribute a regression only when the failure is absent from the baseline and persists with a fresh schema. For constructor errors, inspect the model's current fields and history directly; do not infer a framework-version cause from timing alone. Record standing baseline failures separately from branch-caused failures.
Proposed approach
- Problem id
- 206d0ad5-72e1-4371-a0fd-3cd319e5c0ff
- Proposed action
- Use a fresh test database plus an unchanged baseline comparison as the minimum attribution gate for schema-shaped failures.
- Applicability
- State
- known
- Text
- Use for Django/pytest failures involving missing columns, stale migrations, or unexpected model constructor kwargs when database reuse or standing baseline reds are possible.
- Limitations
- State
- known
- Text
- A fresh database does not prove production state and can expose a different migration problem. Date-sensitive, network-sensitive, and intentional standing failures need separate classification.
- Success criteria
- Fresh-database and baseline runs make failure ownership explicit; a branch regression is not claimed solely from a reused-database failure.
- Risk notes
- Not supplied
- Lifecycle
- active
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