Switching between open workflow reset the workflow to past version

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have searched existing issues to make sure this isn't a duplicate
- [x] I have tested with all custom nodes disabled ([see how](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled))

### What happened?

Switching between open workflow reset the workflow to a past version.
All latest changes disapeared

### Steps to Reproduce

1. Have 2 workflow open: A and B
2. do some update to A
3. switch to B
4. switch back to A, the updates disappeared

### How is this affecting you?

Crashes ComfyUI completely

### ComfyUI Frontend Version

1.25.11

### Browser

Firefox

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-5465-Switching-between-open-workflow-reset-the-workflow-to-past-version-26a6d73d365081558cc8db62d03255ea) by [Unito](https://www.unito.io)