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Duplicate delivery changes an aggregate · case 03
A replayed event increases a total that should change once per event identity.
Case scope
A replayed event increases a total that should change once per event identity.
Why this case matters
A compact reasoning and repair task with executable evidence.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| replayed delivery | 9 | 6 | Failed |
MEMBER ARCHIVE
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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