Subgraph outer red line

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have custom nodes enabled

### What happened?

First of all, congrats & good job on fixing the subgraph core problem (connection dissapear etc)
However, I have minor issue with the UI. With version 0.16.4, the red line aren't showing if the nodes are bypassed. On latest version (0.20.1), these red line showed.

### Steps to Reproduce

Use any workflow, then bypass the model without deleting the nodes, then connect gguf nodes to sampler

### How is this affecting you?

Visual/UI issue only

### ComfyUI Frontend Version

I forgot, the latest 0.20.1 ComfyUI, default

### Browser

Other

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-12082-Subgraph-outer-red-line-35a6d73d3650810ba5fffe513fa09e5a) by [Unito](https://www.unito.io)