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↔ sibling #3039

#3050 Flaky test: usePreviewFetch in-flight fetch for A is discarded after switching to cached B

Opened by stack72 · 10/5/2026· Shipped 10/6/2026

src/presentation/renderers/components/hooks/use_preview_fetch_test.tsx (test at line 153) waits with fixed tick(200) and tick(50) sleeps before asserting. Under load in verify-build (run 29b2ce27-b9f8-4530-a821-cc656489dd41, commit 04b63713 on branch 3039, which does not touch this file) the first assertion saw detail undefined instead of B-detail: the initial fetch had not rendered within 200ms. It passes 30 repeats locally when the machine is idle. AGENTS.md says to poll with waitFor rather than sleep; switching the waits in this test to waitFor on the expected detail should fix it.

02Bog Flow
✓OPEN✓TRIAGED✓IN PROGRESS✓SHIPPED+ 10 MOREPR_MERGED+ 1 MORESESSION_SUMMARIZED

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10/6/2026, 12:13:41 AM

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03Sludge Pulse
stack72 linked sibling of #303910/5/2026, 10:42:21 PM

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