Document type field value lost after submit DM failed

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.2 EE GA1 (6.2.10)
• Fix Version/s: None
• Component/s: Dynamic Data Mapping
• Labels:
  • 62-ee-sp15
  • hotfix
  • hotfix-6210
  • liferay-fixpack-portal-108-6210
• Environment: Any
• Business Value: 4

The issue can't reproduce on master. LPS-56748 and LPS-59582 should solve the issue on master. Due to master has refactor this part, we need to do a fix on ee-6.2.x.

1. Go to Documents and Media, create one Document type (name:type, add text field).
2. Add type document, name:document, and save it.
3. Add type document, name:document, in text field: enter "hello", and save it.
4. Save failed, the error info "Please enter a unique document name." will display in UI.

Actual Result: Entered value in the text field gets clear when Validation Message "Please enter a unique document name." occurs.
Expected Result: This text field in Document type should not lose data when when validation message "Please enter a unique document name." occurs.