Fragment configuration option to select an existing content does not work in display page template

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.2.10 DXP FP2, 7.2.10.1 DXP SP1, 7.2.X, 7.2.1 CE GA2, 7.3.10 DXP GA1, Master
• Component/s: Fragment Administration
• Labels:
  • backend_test
  • liferay-dxp-72-sp1
  • liferay-fixpack-dxp-2-7210
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/78347

Steps to Reproduce:

1. Add a basic web content
2. Add a fragment with configuration

   {
     "fieldSets":[{
       "fields":[{
       "name":"itemSelector",
       "description":"",
       "label":"Content",
       "type":"itemSelector",
           "typeOptions":{
               "enableSelectTemplate":true
         },
       }]
     }]
   } 

   And HTML to display content selection:

    ${configuration.itemSelector}

1. Create a display page template and add fragment
2. Select basic web content as content configuration option

Expected Result:
The selected content data is shown

Actual Result:
The selected content data is not shown

Reproduced on:
Tomcat 9.0.17 + MySQL 5.7 Portal Master GIT ID: b39eaeac7c7f65d28ad616363df3005fa2052d5c