after agent merge, if adding more changes to the same session / feature branc...

after agent merge, if adding more changes to the same session / feature branch, upper right bar that shows one-click agent merge won't show up again.

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| Field | Value |
| --- | --- |
| App version | 1.0.18 |
| OS | Windows 10.0.22631 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 2 |

Start in the /chat flow by reproducing the issue on Windows 10.0.22631 with app version 1.0.18: merge an agent change, add more changes to the same session or feature branch, and check the upper-right bar. Done means the one-click agent merge action appears again when the branch has new changes.

索引モデルが issue の本文から書いたものです。