renamed session names are forgotten

Question

**Bug Description**
* step 1
```
/rename hello
/status <- shows hello
```
* step 2
```
claude --resume
```

"hello" shows a list of sesisons "hello" is one of them select it.
* step 3
```
/status
```
The session name is now empty

**Environment Info**
- Platform: linux
- Terminal: tmux
- Version: 2.1.32
- Feedback ID: 51033a64-2998-4339-b8ec-120019af45ca

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