Large unexpected spike on default (sonnet 4.5) model usage on

### Describe the bug

I've noticed a huge spike on my sonnet 4.5 usage today whilst using auto pilot on claude-opus-4.6

This seems to have triggered something sending off a large number of requests on sonnet 4.5 - is there any known issues on 410 which may have triggered this?

My session was also leveraging the Copilot SDK iterating on some prompts on gpt-5-mini so it is possible there was an issue with defaults being picked up there but i don't have an easy mechanism to diagnose which may have triggered at the moment.

### Affected version

v0.0.410

### Steps to reproduce the behavior

Seemed to occur whilst running opus 4.6 on Auto pilot

### Expected behavior

Standard opus request consumption - no Sonnet 4.5 (And not in the region of 500+ requests)

### Additional context

_No response_