Input field is gone when socket is connected

### Prerequisites

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

### What happened?

When socket is connected on input, input is completely gone which I couldn't find what have I been connected.

Expected behavior (in 1.51.10):

### Steps to Reproduce

1. Create 2 `Text (Multiline)` nodes and `Concatenate Text` node.
2. Connect to `Concatenate Text` node
3. PROFIT

### Workflow

[what1.json](https://github.com/user-attachments/files/32179937/what1.json)

### How is this affecting you?

Visual/UI issue only

### ComfyUI Frontend Version

1.55.9

### Browser

Chrome/Chromium

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

Reproduce the issue in Chrome or Chromium using two Text (Multiline) nodes, a Concatenate Text node, and the attached what1.json workflow. Start by tracing the frontend rendering of inputs after a socket connection; done means the connected input remains visibly identifiable as shown in the expected-behavior image.

Written by the indexing model from the issue text.