editing the label field causes the default value to get auto added back in

### Before opening, please confirm:

- [X] I have [searched for duplicate or closed issues](https://github.com/aws-amplify/amplify-adminui/issues?q=is%3Aissue+).
- [X] I have read the guide for [submitting bug reports](https://github.com/aws-amplify/amplify-adminui/blob/main/CONTRIBUTING.md#bug-reports).
- [X] I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.
- [X] I have removed any sensitive information from my code snippets and submission.

### App Id

di7zhb52ymmnt

### Region

us-east-1

### Environment name

dev

### Figma File Version (if applicable)

_No response_

### Amplify CLI Version

_No response_

### If applicable, what version of Node.js are you using?

_No response_

### What operating system are you using?

_No response_

### Browser type?

_No response_

### Describe the bug

https://github.com/aws-amplify/amplify-studio/assets/87995712/4d4f32b5-9011-4f9d-a3c7-b6b2429ae6ab

editing the Label on form causes the default value to auto complete, unless we time it right

### Expected behavior

Allow modifying the Label properly

### Reproduction steps

1. add a form
2. add a field
3. edit the label and observe behaviour

### Project Identifier

_No response_

### Additional information

_No response_

Start by reproducing the issue with a form and field, then edit the field label while observing when the default value is restored. The work is done when the label can be modified without the default value being automatically added back.

Written by the indexing model from the issue text.