AutoGrow Sockets drop link on copy/paste

### Prerequisites

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

### What happened?

AutoGrow Sockets drop link on copy/paste.

I narrowed it down to nodes that have more than one inputs. Nodes like Batch Images or Batch Masks not affected, but other nodes with AutoGrow inputs that have any other input do suffer from this bug.

https://github.com/user-attachments/assets/162a3b19-c19f-411c-b60b-1fde841686b2

### Steps to Reproduce

1. Add any node with AutoGrow input sockets that have any other inputs (GLSL Shader or the new core Math Expression for example)
2. Connect a bunch of links
3. Copy/paste the whole thing (input nodes and target node as well)

### How is this affecting you?

Workflow won't execute

### ComfyUI Frontend Version

1.42.2

### Browser

Chrome/Chromium

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-9779-AutoGrow-Sockets-drop-link-on-copy-paste-3216d73d365081bf9639c895b38a7a22) by [Unito](https://www.unito.io)