Todo items rendered incorrectly when updating

[metaboulie]

Describe the bug

https://github.com/user-attachments/assets/37b4f125-6443-48eb-9f90-a3e1adbb97b2

I expect items 7, 8, 9 rendered as undone in the output when removing items 3, 4, 5, 6 The items are rendered correctly only after restarting the notebook

Environment

{
  "marimo": "0.12.5",
  "OS": "Darwin",
  "OS Version": "24.0.0",
  "Processor": "arm",
  "Python Version": "3.11.10",
  "Binaries": {
    "Browser": "--",
    "Node": "v23.11.0"
  },
  "Dependencies": {
    "click": "8.1.8",
    "docutils": "0.21.2",
    "itsdangerous": "2.2.0",
    "jedi": "0.19.2",
    "markdown": "3.7",
    "narwhals": "1.34.0",
    "packaging": "24.2",
    "psutil": "7.0.0",
    "pygments": "2.19.1",
    "pymdown-extensions": "10.14.3",
    "pyyaml": "6.0.2",
    "ruff": "0.11.4",
    "starlette": "0.46.1",
    "tomlkit": "0.13.2",
    "typing-extensions": "4.13.1",
    "uvicorn": "0.34.0",
    "websockets": "15.0.1"
  },
  "Optional Dependencies": {},
  "Experimental Flags": {
    "multi_column": true,
    "chat_sidebar": true,
    "tracing": true,
    "rtc": false
  }
}

Code to reproduce

* todo list

- [ ]  item 1
- [ ]  item 2
- [x]  item 3
- [x]  item 4
- [x]  item 5
- [x]  item 6
- [ ]  item 7
- [ ]  item 8
- [ ]  item 9