[Bug] Agent self-responding in conversation loop without user input

Question

**Bug Description**
While working in a session (I have a defined /session command), the agent started responding to itself. I can see in the conversation user* where * is a response that I didn't write, and it continued like this until the end of the session.

**Environment Info**
- Platform: linux
- Terminal: ghostty
- Version: 2.1.187
- Feedback ID: af8ba19f-da23-40f3-a907-66c407bc9ef9

**Errors**
```json
[]
```