The §9c "Memory KV Edit round-trip" gate (added in #2787) captured the
expected-409 status code via:
$(tenant_call ... -w "%{http_code}" || echo "000")
tenant_call uses CURL_COMMON which carries --fail-with-body. On the
expected 409, curl exits 22; the `|| echo "000"` then fires and
appends "000" to the captured stdout — yielding "409000" instead of
"409", failing the gate even though the contract was satisfied.
Caught on PR #2792's first E2E run (status got "409000"). Has been
silently failing the staging-SaaS E2E since #2787 merged earlier
today; nothing else surfaced it because the workflow is informational,
not required.
Fix: route -w into its own tempfile so curl's exit code can't pollute
the captured stdout. Wrap with set +e/-e so the 22 doesn't trip the
outer pipeline. Same shape as the §7c gate fix that PR #2779/#2783
landed for the same class of bug.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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