Forms date field is cleared when there is an empty required date field present

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X
• Fix Version/s: 7.0.0 DXP FP84, 7.0.10.12 DXP SP12, 7.0.X
• Component/s: Forms
• Labels:
  • ee-ts
  • liferay-fixpack-de-84-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Last Working Version:
  7.0.0 DXP FP75
• Git Pull Request: https://github.com/natocesarrego/liferay-portal-ee/pull/44

Steps to reproduce:

1. Add a new form.
2. Add a required date field: "date1"
3. Add a non-required second date field: "date2"
4. Publish the form.
5. Enter a date in date2
6. Enter a date in date1

Expected behaviour:  date2's value is not cleared when it loses focus.

Actual behaviour: date2's value is cleared when date1 is focused