Asset Publisher metadata is not correctly moved between Current and Available boxes

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.2.X, 7.3.10 DXP FP1, 7.3.10.1 DXP SP1, 7.3.6 CE GA7, 7.3.X, Master
• Component/s: Content Display Widgets > Asset Publisher widget
• Labels:
  • ee-ts
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
  • liferay-fixpack-dxp-9-7210
• Branch Version/s:
  7.3.x, 7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/2678

Steps to reproduce

1. Access to your home page with a non-default language. Let's say http://localhost:8080/es/web/guest/home
2. Add an Asset Publisher
3. Go to Asset Publisher's configuration -> Display Settings -> Metadata section
4. Move everything to Current box
5. Save the changes
6. Go again to Metadata section

Expected behavior
You changes persisted

Actual behavior
Some options remained in "Available" box