Repeated text fields are being autosaved with the same value as the original

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, Master
• Fix Version/s: 7.1.10 DXP FP13, 7.1.X, 7.2.10 DXP FP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Forms
• Labels:
  • ee-ts
  • liferay-fixpack-dxp-1-7210
  • liferay-fixpack-dxp-13-7110
• Branch Version/s:
  7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 2
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/75837

Steps to Reproduce

1. Start a clean bundle of Liferay DXP 7.1;
2. Go to Control Panel -> Configuration -> System Settings -> Forms and make sure the autosave interval is set to 1;
3. Go to Content -> Forms and create a new form with one text field that is repeatable;
4. Add the form to a page and fill the text field;
5. Add 5 of that repeatable field;
6. Wait over a minute and then refresh the page.

Expected Result
The form refreshes showing the text only in the first field.

Actual Results
All the fields show the same text as the first one.