Dropping the render-phase setTasks([]) on projectId change avoids the
blank flash and full empty→populated Board reconcile that made project
switches feel like a multi-second hang. The existing fetch/version
guards already reject late responses and stale SSE events, so the
previous project's rows safely stay on screen until the new fetch lands.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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