Custom fields wrong values after error

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, 7.3.X, Master
• Fix Version/s: 7.2.X, 7.3.10 DXP U20, 7.3.X, 7.4.13 DXP U49, 7.4.3.49 CE GA49, Master
• Component/s: Portal Services > Expando
• Labels:
  • 7.3.10-u20
  • 7.4-known-issues
  • 7.4.13-u49
  • ee-ts
  • liferay-ga39-ce-743-known-issues
  • liferay-ga40-ce-743-known-issues
  • liferay-ga41-ce-743-known-issues
  • liferay-ga42-ce-743-known-issues
  • liferay-ga43-ce-743-known-issues
  • liferay-ga44-ce-743-known-issues
  • liferay-ga45-ce-743-known-issues
  • liferay-ga46-ce-743-known-issues
  • liferay-ga47-ce-743-known-issues
  • liferay-ga48-ce-743-known-issues
• Branch Version/s:
  7.3.x, 7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/liferay-core-infra/liferay-portal/pull/1947

Steps to reproduce:

1. Add a new document input custom field 'test'. Make it localizable.
2. Go to Documents & Media and click on File Upload:
   1. Enter the title: ***
   2. Enter this file name: **
   3. In 'test' custom field, add a value only for the Spanish translation. Leave the English translation empty.
3. Publish.

Expected result:

• *Error:*Please enter a file with a valid file name.
• Custom field values remain as filled in, and an extra error asking the user that to also define a value for the default language.

Current result: 

• *Error:*Please enter a file with a valid file name.
• English (default locale) custom field value is filled with the Spanish value.