During December 2025, Jazz Sir addressed a complex race condition in the istio/istio repository, focusing on VirtualService merges involving multiple HTTPRoutes and InferencePools. By implementing a deep-copy mechanism for InferencePool configurations, Jazz ensured that ext_proc settings were preserved, preventing overwrites when different pools were referenced on the same Gateway. This solution, developed in Go and leveraging Kubernetes and cloud infrastructure expertise, operated entirely at configuration time, maintaining runtime performance. Jazz validated the fix with targeted tests, enhanced logging for better visibility, and updated release notes, ultimately improving the reliability and scalability of multi-model inference routing in Istio deployments.