Archived in composite projections: regression tests + docs (#4093)#4264
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jeremydmiller merged 2 commits intomasterfrom Apr 19, 2026
Merged
Archived in composite projections: regression tests + docs (#4093)#4264jeremydmiller merged 2 commits intomasterfrom
jeremydmiller merged 2 commits intomasterfrom
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Adds end-to-end tests that prove Archived is now safely scoped to the single-stream projection that owns the stream when multiple single-stream children run in the same composite group. The underlying behavior change lives in JasperFx.Events 1.28.0 (PR JasperFx/jasperfx#185) — both guards are keyed on snapshot presence so sibling projections that do not own the stream no longer create phantom documents or issue redundant mt_archive_stream operations. * Bug_4093_archived_in_composite_projections.cs exercises both scenarios: phantom Create(Archived) prevention and owning/non-owning archival. * docs/events/archiving.md gains a new section explaining the composite semantics and the snapshot-ownership rule. * JasperFx.Events bumped to 1.28.0; transitively requires JasperFx 1.24.1. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This was referenced Apr 20, 2026
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Closes #4093.
Summary
Adds end-to-end regression tests and documentation for the new behavior in JasperFx/jasperfx#185, which gates `Archived` handling on single-stream projection ownership so siblings in a composite group no longer interfere with each other.
What ships in this PR
Dependency
Blocks on `JasperFx.Events 1.28.0` — currently on the JasperFx PR branch. CI on this PR will fail until that package is published. Local verification on all three TFMs: 2/2 `Bug_4093` tests pass, full archiving + aggregation suite (300 tests) pass, `Bug_3874_able_to_read_archived_and_tombstone_from_older_names` passes (so `Apply(Archived, current)` on existing snapshots still works).
Test plan
🤖 Generated with Claude Code