[release/10.0] [Blazor][HotReload] Capture the execution context before calling RenderRootComponentsOnHotReload #63847
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maraf
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Sep 29, 2025
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Backport of #63846 to release/10.0
/cc @javiercn
[Blazor][HotReload] Capture the execution context before calling RenderRootComponentsOnHotReload
Ensure ExecutionContext flows to hot reload re-renders
Description
ExecutionContextwhen subscribing toHotReloadManager.OnDeltaAppliedRenderRootComponentsOnHotReloadvia a helper that restores the captured context, preserving AsyncLocal valuesFixes #45741
Customer Impact
AsyncLocal-backed data (e.g., culture, logging scopes, circuit state) was being lost after hot reload, leading to incorrect behavior on subsequent renders.
Regression?
Risk
Changes are scoped to the hot reload subscription path, reuse existing render logic, and are exercised by automated tests.
Verification
Packaging changes reviewed?