That is really great to know, but that does not exactly address my issue. For clarity, here is the workflow of my issue:
1. A user goes to the settings page and sees only the first “extra link” group. None of the fields in that group are filled out initially.
2. The user selects one of the radio buttons – let’s say it’s radio B. They also add text into all of the other fields in this first group.
3. The user clicks on the “Add more” button to display a second group.
4. None of the fields in the second group are filled in as expected (as you noted.) However, neither radio button in the *first* group is selected now. The previously selected radio button in that first group is now unselected – this happens when the group is cloned to create the second group.