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perf(web): huge-thread switch no longer blanks the chat pane - #11169

Merged
juliusmarminge merged 14 commits into
legend-perf/stable-code-linesfrom
cursor/huge-thread-switch-flash-2a67
Sep 11, 2026
Merged

perf(web): huge-thread switch no longer blanks the chat pane#11169
juliusmarminge merged 14 commits into
legend-perf/stable-code-linesfrom
cursor/huge-thread-switch-flash-2a67

test(web): complete held timeline preview message fixtures

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MacroscopeApp / Macroscope - Approvability Check completed Sep 11, 2026 in 1m 42s

Not approved

  • Eligibility
  • Correctness

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Details

Eligibility
This production web change replaces thread-view remounts with cached timeline snapshots and in-place virtualization updates across ChatView and MessagesTimeline, affecting rendering, scrolling, and interaction state. Its cross-component runtime scope and an unresolved review concern around A→B→A loading make human review appropriate.

Notes:
No code owners found in target merge base f378a49

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