Using the Language Portlet to switch languages while reading a singly asset publisher entry results in error

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, 7.3.X, Master
• Fix Version/s: 7.2.10 DXP FP10, 7.2.10.4 DXP SP4, 7.2.X, 7.3.10 DXP FP1, 7.3.10.1 DXP SP1, 7.3.6 CE GA7, 7.3.X, 7.4.13 DXP GA1, Master
• Component/s: Content Display Widgets > Language widget
• Labels:
  • 7.3-pre-fp1
  • backend_test
  • ee-ts
  • liferay-dxp-72-sp4
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
  • liferay-fixpack-dxp-10-7210
• Branch Version/s:
  7.3.x, 7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/dacousalr/liferay-portal/pull/289

Reproduction Steps:

1. Setup Liferay DXP 7.2 with Fix Pack 8
2. Create a Web Content TestWebContent
3. Create a new Widget Page TestPage
4. Add an Asset Publisher to the page
5. Add a Language Portlet to the page
6. Click on the web content's title
7. Change the language using the language portlet to Nederlands (or any other language)
   Note: the URL will be prefixed with /nl/ if the append does not happen manually update the URL localhost:8080/nl/...
8. Change the language again to any other language.

 Expected Behavior
The language is changed and the web content is displayed.

 Actual Behavior
An error is received:
Errors received: