[trissim]

The saved-creation-collision test still expected a history read to resolve registry identities. #2893 made RegistrySnapshot.by_lookup lazy; assert RelationViolationError when that lookup is read instead.

Only tests/test_envelope_bus_integration.py:152 changes:

     with pytest.raises(RelationViolationError):
-        read_history(comms)
+        dict(reopened.registry.snapshot().by_lookup)

Bob's refused claim and the alice-only bus-row assertion stay intact. The dict call forces the lookup and avoids a bare-expression B018 finding. No src changes. Backend's child-script Bus import near :238 is untouched.

This follows #2957, which merged as 922ac87 and was already merged when I checked this additional order; GitHub cannot append a commit to that merged PR. It uses the same main-reds branch, updated to origin/main.

Validation: read RegistrySnapshot.by_lookup at registry_document.py:1023-1031. The commander supplied the behavior proof on 4f62186; no local tests, ratchets or suites ran. ruff check ran on the sole changed Python file and reports only existing I001 at :6 and E501 at :66, neither on the changed line. git diff --check passed.

 tests/test_envelope_bus_integration.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Assumed: the supplied by_lookup refusal is the intended public identity-resolution read. Backend still owns its separate child-script import edit; this PR changes only :152.

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