PROD-739 #2947 - Fix: Profile edit > Field set issue in saving

[milanhirapra]

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Changes proposed in this Pull Request:

Fixes #2947 .

How to test the changes in this Pull Request:

1. Setup fieldset with repeater and make the fields inside it required.
2. Go to User profile > edit.
3. Try adding blank fieldsets.
4. Change some of the fields and delete empty fieldsets and save them.
5. Can see deleted fieldset will delete from the user profile.

Proof Screenshots or Video

https://vimeo.com/624258970/c200ab761a

Other information:

• [x] Have you added an explanation of what your changes do and why you'd like us to include them?
• [ ] Have you written new tests for your changes, as applicable?
• [x] Have you successfully run tests with your changes locally?

Changelog entry

Enter a summary of all changes on this Pull Request. This will appear in the changelog if accepted.