[Bugs] I asked Copilot to check out another engineer's pull request and make changes...

**Mood:** 😔
**Category:** Bugs

I asked Copilot to check out another engineer's pull request and make changes, but I want to push my changes back on a separate branch/PR.

I requested that Copilot create a PR on a new branch, which it did using the `gh` CLI. When I asked it again to use the built-in tools so the tracking in the app updated to track/display the new PR, it made several tool calls and believed it had updated the state, but nothing appeared to change in the UI.

Ideally, changing the PR or branch a session is tracking would be easy to accomplish via either the UI or a tool call.

---
| Field | Value |
| --- | --- |
| App version | 0.2.33 |
| OS | macOS 26.4.1 |
| Theme | Selene Selenized |
| Path | /chat |
| Tenure | Week 2 |

从 /chat 体验开始并复现该流程：checkout 一个现有的 pull request，使用 gh CLI 创建一个单独的分支或 PR，然后请求内置工具更新正在跟踪的 PR。将会话状态与 UI 显示的内容进行比较，并验证更改正在跟踪的分支或 PR 是否反映在应用中。

由索引模型根据 Issue 内容生成。