List Formatting: Edit Columns removes `fieldsettings`

[tecchan1107]

Target SharePoint environment

SharePoint Online

What SharePoint development model, framework, SDK or API is this about?

Declarative list formatting

Developer environment

Windows

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

No response

Describe the bug / error

A new feature was added to allow setting specific fields as read-only using fieldsettings.

However, it’s unclear if this is a bug, but when saving changes via [Edit Columns], the fieldsettings get removed.

Is this removal behavior considered a bug?
If not, it would be troublesome if fieldsettings get removed each time column order or visibility settings are changed.

Steps to reproduce

1. Set the JSON including fieldsettings in the form’s Body
2. Make any changes using Edit Columns and save
3. Reopen the form

Expected behavior

Even after saving changes via Edit Columns, fieldsettings are not removed.

[Amey-MSFT]

Hello @tecchan1107,
Thank you for bringing this issue to our attention. We will look into it and get back to you shortly.

[Amey-MSFT]

Hello @tecchan1107,
We were able to reproduce the issue, and we are investigating it. We have logged this as a bug, and our engineering team will look into it.
Thank you!

[watana2]

I created a new list, added a Date column, after setting it to read-only, the Date column became hidden.

[tecchan1107]

@watana2
I believe that's the correct behavior!
Configure the list form - Behavior in Different Form Views

[watana2]

@tecchan1107
I now realize I had misinterpreted the doc—thanks.